JP2004044969A - Liquid supply device and liquid-fuel combustion device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid supply device capable of being easily assembled and decomposed, and having a handle structure reduced in its number of components. <P>SOLUTION: This liquid supply device has a tank part having an upper plate covering an upper part, and storing the liquid inside thereof, and a handle 30 mounted on the upper plate. The handle 30 includes a strap rod 40 rotatably mounted on the upper plate, and a resin handle cover 31 mounted on the strap rod 40. The handle cover 31 has a recessed part 35 receiving the strap rod 40, and a claw piece 37 locking the strap rod 40 received in the recessed part 35 on one of faces positioned in the rotating direction of the handle 30. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a liquid fuel combustion device represented by a petroleum fan heater and a petroleum stove. Further, the present invention relates to a liquid supply device which is detachably mounted on these devices and supplies liquid to the device main body in accordance with the operation of the device main body.
[0002]
[Prior art]
2. Description of the Related Art A cartridge type liquid supply device which is detachably attached to a device main body and supplies a liquid according to the operation of the device main body has been applied to various devices. As one of them, a liquid fuel combustion device is known. Hereinafter, a petroleum fan heater will be exemplified as an example of the liquid fuel combustion device, and the structure thereof will be described.
[0003]
FIG. 8 is a view showing the appearance of a conventional oil fan heater. The main body of the oil fan heater has a housing 101, and the housing 101 is mounted on a mounting table 105. Inside the housing 101, a combustion unit and a liquid supply device are housed. Note that the concept of a liquid supply device includes a so-called “fuel tank” that is handled as a unit.
[0004]
As shown in FIG. 8, an outlet 102 for blowing warm air into the room is formed below the front plate 106 of the housing 101. An operation unit 103 in which switches for switching operation states are accommodated is provided on a top plate 108 of the device main body that covers the upper surface of the housing 101. An opening is provided at a predetermined position of the top plate 108 of the device main body, and a fuel tank 110 is detachably attached to the inside of the housing 101 through this opening.
[0005]
FIG. 9 is a diagram showing an appearance of a fuel tank mounted on the oil fan heater. The fuel tank 110 has an upper plate that covers the upper part, and includes a tank portion 112 that stores liquid fuel therein, and a tank cover 120 that is attached so as to cover the upper plate of the tank portion 112. The fuel tank 110 shown in FIG. 9 is a fuel tank configured so as not to need to be turned upside down at the time of fuel supply work, and has a supply port 144 above the tank unit 112. For this reason, a supply port cover 121 is provided above the fuel tank 110 so as to form a continuous surface with the upper surface of the tank cover 120. An opening / closing button 122 for opening and closing the supply port cover 121 is provided near the supply port cover 121.
[0006]
Above the fuel tank 110, a handle 130 is provided for carrying the fuel tank during refueling work and for attaching and detaching the fuel tank to and from the apparatus main body. The handle 130 is stored in a handle storage portion 123 provided on the upper surface of the tank cover 120, so that the upper surface is continuous with the upper surface of the tank cover 120.
[0007]
When the fuel tank 110 having the above configuration is mounted on the main body of the apparatus, the upper surface of the fuel tank 110 is exposed from the top plate 108 of the main body of the apparatus, as shown in FIG. For this reason, at the time of refueling work, the work of taking the fuel tank 110 in and out from the upper side of the device main body can be performed very easily.
[0008]
FIG. 10 is a top view of the fuel tank. As described above, the tank cover 120, the supply port cover 121, and the handle 130 are located on the upper surface of the fuel tank 110. The handle 130 has a U-shape and is arranged on the upper surface of the fuel tank 110 so as to extend from one point to another point. The handle 130 includes a metal hanging rod 140 rotatably attached to the upper plate of the tank 112 and a resin grip cover 131 that covers the hanging rod 140.
[0009]
FIG. 11 is a side view of the upper part of the fuel tank viewed from the side. As shown in the figure, the handle cover 131 is made up of two members, an upper handle cover 131a and a lower handle cover 131b, and the suspender rod 140 is positioned therein.
[0010]
FIG. 12 is a sectional view taken along line XII-XII in FIG. Both ends of the lifting rod 140 pass through holes 134 provided inside both ends of the handle cover 131, and pass through holes provided in a metal handle mounting plate 150 mounted on the upper plate of the tank 112. I have. As a result, the lifting rod 140 is rotatably supported by the upper plate of the tank 112. As a result, when the fuel tank 110 is lifted with the handle 130, the tensile load applied to the handle 130 is applied to the metal handle mounting plate 150.
[0011]
By adopting the above-described handle structure, it becomes possible to provide an oil fan heater having a fuel tank that is easy to hold and that can be easily handled by elderly people and women.
[0012]
[Problems to be solved by the invention]
However, the above handle structure has the following problems in terms of assemblability and disassembly. Note that disassembly of the handle indicates disassembly for recycling or disassembly for maintenance.
[0013]
As shown in FIG. 13, in the conventional handle structure, a handle rod 140 is fitted into a recess 135 and a hole 134 provided in a lower handle cover 131 b, and the handle upper cover 131 a is gripped so as to sandwich the handle rod 140. The handle upper cover 131a and the handle lower cover 131b are fixed to the lower cover 131b by screws 139. In such an assembling structure, it is necessary to attach and detach screws at the time of assembling and disassembling, which complicates the operation.
[0014]
After the handle cover is attached to the hanging rod, the elastic deformation of the hanging rod in the lateral direction (the direction indicated by the arrow X in FIG. 13) is suppressed by the grip cover. Could not be assembled. For this reason, the handle is attached to the upper part of the tank part by a procedure in which the handle rod is previously attached to the handle attachment plate located on the upper surface of the tank part, and then the handle cover is attached to the suspension rod. Due to such a limitation in the procedure, the workability when assembling the handle to the fuel tank has been further complicated.
[0015]
Further, in the conventional handle structure, the number of parts constituting the handle is large, which has led to an increase in manufacturing cost.
[0016]
Therefore, the present invention has been made to solve the above problems, and has a handle structure in which assembly and disassembly can be easily performed and the number of parts is reduced, and a liquid fuel combustion apparatus including the same is provided. It is intended to provide a device.
[0017]
[Means for Solving the Problems]
A liquid supply device according to the present invention is a liquid supply device that is detachably attached to a device main body and supplies liquid to the device main body in accordance with operation of the device main body, and includes a tank unit and a handle. The tank has an upper plate that covers the upper part, and stores the liquid inside. The handle is provided on the upper plate of the tank portion, and includes a metal bar rotatably attached to the upper plate of the tank portion, and a resin handle cover attached to the metal bar. The handle cover has a concave portion for receiving the metal rod and a claw portion for locking the metal rod received in the concave portion on one of the surfaces located in the rotation direction of the handle.
[0018]
As described above, by providing the concave portion for receiving the metal bar on one side of the handle cover and the claw portion for locking the metal bar, the handle can be easily processed by simply pressing the handle cover against the metal bar. Assembly can be performed. Further, the handle can be disassembled by a simple operation of merely separating the handle cover from the metal bar. On the other hand, since the metal rod is locked by the claw portion, the locking of the metal rod by the handle cover is stably maintained during use.
[0019]
In the liquid supply device according to the present invention, for example, it is preferable that the handle cover is formed of one member formed by injection molding. As described above, by making the handle cover a one-piece resin cover formed by injection molding, the handle can be composed of two parts, the metal rod and the one-piece handle cover. The number of points is greatly reduced, and manufacturing costs can be reduced.
[0020]
In the liquid supply device according to the present invention, for example, it is preferable that the claw portion is formed in the concave portion. In this manner, by providing the claw portion in the concave portion, there is no unevenness on the surface of the handle other than the concave portion, so that the gripping comfort of the handle is remarkably improved.
[0021]
In the liquid supply device according to the present invention, for example, the claw portion may be provided on a wall surface that holds the metal bar from below, in a state where the handle is raised, of the wall surface that forms the concave portion. preferable. In this way, by providing the claw portion on the wall surface of the concave portion that holds the metal rod from below with the handle raised, even when the fuel tank is lifted, the vertical downward load applied to the metal rod is also reduced. The engagement between the metal bar and the handle cover is stably ensured. As a result, it is possible to prevent the handle cover from falling off from the metal bar.
[0022]
In the above-described liquid supply device according to the present invention, for example, the metal rod includes a rotating shaft portion attached to the upper plate, first and second extending portions extending upright from the rotating shaft portion, A handle portion for connecting ends of the first and second extension portions opposite to the rotation shaft portion side, and at least one of each of the first and second extension portions and the handle portion; It is preferable that a claw portion is provided to lock the above. In this way, by providing one or more claws on each of the three sides of the handle cover corresponding to the first and second extending portions and the handle portion of the metal bar, the engagement between the metal bar and the handle cover is provided. Stability is maintained stably. For this reason, the handle cover can be more reliably prevented from falling off from the metal bar.
[0023]
In the liquid supply device according to the present invention, the liquid supply device further includes a resin tank cover that covers the upper plate, the tank cover includes a handle receiving portion that receives a handle on an upper surface, and the handle cover is in a state where the handle is raised. It is preferable that the handle cover is prevented from falling off from the metal bar by contacting the wall surface of the tank cover constituting the handle storage portion. In this way, by configuring the handle cover to come into contact with the wall surface of the tank cover with the handle raised, it is possible to prevent the handle cover from falling off from the metal bar.
[0024]
A liquid fuel combustion device according to the present invention includes any one of the above-described liquid supply devices. By using a liquid fuel combustion device provided with any of the above-described liquid supply devices, it is possible to obtain a liquid fuel combustion device that is excellent in terms of assemblability and decomposability, and that has a reduced number of parts. Therefore, the manufacturing cost can be significantly reduced.
[0025]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0026]
(Overall structure of oil fan heater and structure of fuel tank)
FIG. 1 is an external view showing a structure of an oil fan heater according to one embodiment of the present invention. The main body of the oil fan heater according to the present embodiment has a housing 1, and the housing 1 is mounted on a table 5. Inside the housing 1, a fuel tank 10, which is a combustion unit and a liquid supply device, is housed.
[0027]
As shown in FIG. 1, an outlet 2 for blowing warm air into a room is formed in a lower portion of a front plate 6 of the housing 1, and switches for switching an operation state are accommodated in an upper portion of the front plate 6. Operating unit 3 is disposed. An opening is provided at a predetermined position of the top plate 8 of the device main body, and the fuel tank 10 is detachably attached to the device main body inside the housing 1 through the opening.
[0028]
FIG. 2 is an external view showing the structure of the fuel tank in the present embodiment. The fuel tank 10 has an upper plate that covers the upper part, and includes a tank part 12 that stores liquid fuel therein, and a resin tank cover 20 that is attached so as to cover the upper plate of the tank part 12. The fuel tank 10 shown in FIG. 2 is a fuel tank configured so as not to need to be turned upside down at the time of fuel supply work, and has a supply port 44 above the tank section 12. For this reason, a supply port cover 21 is provided above the fuel tank 10 so as to form a continuous surface with the upper surface of the tank cover 20, and an open / close button 22 for opening and closing the supply port cover 21 is provided on the upper surface of the supply port cover 21. Is provided.
[0029]
Above the fuel tank 10, there is provided a handle 30 for carrying the fuel tank at the time of refueling work and for attaching and detaching the fuel tank to and from the apparatus main body. The handle 30 is accommodated in a handle accommodating portion 23 provided on the upper surface of the tank cover 20 so that the upper surface thereof is continuous with the upper surface of the tank cover 20.
[0030]
When the fuel tank 10 having the above configuration is mounted on the main body of the apparatus, as shown in FIG. 1, the upper surface of the fuel tank 10 is exposed from the top plate 8 of the main body of the apparatus. The operation of taking the fuel tank in and out of the vehicle can be performed very easily.
[0031]
(Structure of handle)
FIG. 3 is a top view of the fuel tank according to the present embodiment. As described above, the tank cover 20, the supply port cover 21, and the handle 30 are located on the upper surface of the fuel tank 10. The handle 30 has a U-shape and is arranged on the upper surface of the fuel tank 10 from one point to another point. The handle 30 includes a metal hanging rod 40, which is a metal rod rotatably attached to the upper plate of the tank 12, and a resin grip cover 31 attached to the hanging rod 40.
[0032]
(Shape of the hanging hand rod)
FIG. 4 is a front view showing the shape of the hanging rod of the handle in the present embodiment. The hanging hand rod 40 is made of a metal rod-shaped wire, and is processed into a shape as shown in FIG. 4 by bending a predetermined position. The lifting rod 40 is rotatably mounted on a handle mounting plate mounted on the upper plate of the tank 12, and first and second extending shafts 41 are provided upright from the rotating shaft 41. The first and second extending portions 42a and 42b are provided with a handle portion 43 connecting the ends of the first and second extending portions 42a and 42b on the opposite side to the rotating shaft portion 41 side. In addition, in order to prevent the hanging rod 40 from dropping from the handle mounting plate, header processing (press processing is performed near the distal end of the rod-shaped member made of metal, and wing-shaped (A process of forming a pair of extending projections).
[0033]
(Shape of handle cover)
5A and 5B are diagrams showing the shape of the handle cover according to the present embodiment, wherein FIG. 5A is a front view and FIG. 5B is a rear view. As shown in FIGS. 5 (a) and 5 (b), the handle cover 31 has a U-shape, and the portions 32a, 32a, 32b and a portion 33 corresponding to a handle portion of the hanging rod.
[0034]
As shown in FIG. 5B, a concave portion 35 for receiving the suspender rod is formed on the back surface of the handle cover 31 inside the three sides. The back surface of the handle cover 31 provided with the concave portion 35 corresponds to one of the surfaces located in the turning direction of the handle after the handle is attached to the upper portion of the tank. A notch 34 for pulling out the hanging rod is provided in a portion corresponding to the rotation shaft of the hanging rod. At a predetermined position on the inner peripheral side wall surface 36 constituting the concave portion 35, a claw portion 37 for holding the received suspender rod is provided.
[0035]
It is preferable that at least one claw portion 37 is provided on each of the three sides, and in the handle cover 31 shown in the drawing, one portion is provided on the side corresponding to the first and second extending portions of the hanging rod. Each is provided at four places on the side corresponding to the handle portion. When the handle 31 is raised, the claw portion 37 is preferably provided on a wall surface of the concave portion 35 that holds the hanging rod from below, and in the handle cover 31 shown in FIG. The inner peripheral side wall surface 36 of the portion 33 corresponding to the handle portion of the hanging rod corresponds to this wall surface. Note that a plurality of ribs 38 for reinforcement are provided on the back surface of the handle cover 31.
[0036]
(Assembly structure of handle)
FIG. 6 is an exploded perspective view for explaining the handle assembling structure in the present embodiment. As shown in the drawing, in the handle assembling structure in the present embodiment, the handle 30 is assembled by fitting the hanging rod 40 into the concave portion 35 provided on the back side of the handle cover 31. At this time, the hanging rod 40 is fitted over the claw portion 37 provided inside the concave portion 35, so that the hanging hand rod 40 received in the concave portion 35 is locked by the claw portion 37. The locking of the claw portion 37 prevents the handle cover 31 from falling off the hanging rod 40.
[0037]
At the time of assembling the handle to the actual fuel tank, the rotating shaft portion 41 of the hanging rod 40 is previously inserted into the hole of the handle mounting plate mounted on the upper plate of the tank portion 12 and then mounted. By pressing the handle cover 31 against the hand rod 40, the handle cover 31 is assembled to the suspension handle rod 40 to complete the process.
[0038]
(Handle movement)
7A and 7B are upper side views of the tank unit for explaining the operation of the handle in the present embodiment, wherein FIG. 7A illustrates a state in which the handle is folded down, and FIG. 7B illustrates a state in which the handle is raised. Is shown. As shown in FIG. 7A, when the handle 30 is folded down, the handle 30 is stored in a handle storage portion 23 provided on the upper surface of the tank cover 20. When the handle 30 is rotated in the direction of arrow A shown in FIG. 7B and the handle 30 is raised almost vertically, the handle portion of the handle 30 comes out of the handle storage portion 23. Therefore, it is possible to hold the handle 30.
[0039]
A projection 25 is formed on an upper portion of a wall surface 24 generated by providing the handle storage portion 23 on the tank cover 20. As shown in FIG. 7B, in a state where the handle 30 is raised, the distance b from the projection 25, which is the portion of the wall surface 24 closest to the handle 30, to the suspender rod 40 is smaller than the thickness a of the handle cover 31. By doing so, it is possible to prevent the handle cover 31 from coming off the hanging rod 40 by any chance. This is because the handle cover 31 comes into contact with the protrusion 25 in the state where the handle 30 is raised by the above-mentioned size, so that the handle cover 31 is prevented from falling off from the hanging rod 40.
[0040]
(Action / Effect)
By employing the handle structure having the above-described configuration, the work of attaching the handle cover to the metal bar can be performed very easily. Also, the disassembling operation of removing the handle cover from the metal bar can be performed very easily. Furthermore, by adopting this configuration, the number of parts is reduced, and the manufacturing cost can be reduced. On the other hand, since the metal bar is locked by the claw portion, the handle cover is also prevented from dropping from the metal bar during use, and stable locking between the handle cover and the metal bar is maintained. In addition, the handle can be easily disassembled at the time of recycling, so that an effect of promoting recycling can be obtained.
[0041]
(Application of liquid supply device to various devices)
The liquid supply device described above is applicable to all devices that operate using a liquid, such as a liquid fuel combustion device such as an oil fan heater and an oil stove, and an air conditioner such as a humidifier.
[0042]
In the above-described embodiment, the liquid supply device that does not need to be turned upside down during the liquid replenishment operation has been described as an example. However, the present invention is not particularly limited to this. Naturally, it is also possible to apply the present invention.
[0043]
As described above, the above-described embodiments disclosed herein are illustrative in all aspects and are not restrictive. The technical scope of the present invention is defined by the claims, and includes all modifications within the meaning and scope equivalent to the claims.
[0044]
【The invention's effect】
According to the present invention, it is possible to provide a liquid supply device having a handle structure that can be easily assembled and disassembled and has a reduced number of parts, and a liquid fuel combustion device including the same. As a result, the production cost can be reduced and the operation at the time of recycling can be simplified.
[Brief description of the drawings]
FIG. 1 is an external view of an oil fan heater according to an embodiment of the present invention.
FIG. 2 is an external view of a fuel tank mounted on the oil fan heater shown in FIG.
FIG. 3 is a top view of the fuel tank shown in FIG.
FIG. 4 is a front view showing a shape of a hanging hand rod according to the embodiment of the present invention.
FIGS. 5A and 5B are front and rear views, respectively, showing the shape of a handle cover according to an embodiment of the present invention.
FIG. 6 is an exploded perspective view showing an assembling structure of the handle according to the embodiment of the present invention.
FIGS. 7A and 7B are side views illustrating the operation of the handle according to the embodiment of the present invention, wherein FIG. 7A is a view illustrating a state in which the handle is folded down, and FIG. is there.
FIG. 8 is an external view of a conventional oil fan heater.
9 is an external view of a fuel tank mounted on the conventional oil fan heater shown in FIG.
FIG. 10 is a top view of the fuel tank shown in FIG.
11 is an upper side view of the fuel tank shown in FIG.
FIG. 12 is a sectional view taken along line XII-XII in FIG.
FIG. 13 is an exploded perspective view showing a conventional handle mounting structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Housing, 2 outlets, 3 operation parts, 5 mounting stands, 6 front plates, 8 top plates, 10 fuel tanks, 12 tank parts, 20 tank covers, 21 supply port covers, 22 opening / closing buttons, 23 handle storage sections, 24 Walls (constituting the tank housing), 25 projections, 30 handles, 31 handles cover, 32a (corresponding to the first extension of the hanging rod), 32b (corresponds to the second extension of the hanging rod) Part), 33 (corresponding to the handle part of the hanging hand rod), 34 notch, 35 concave part, 36 (the concave part) inner peripheral side wall surface, 37 claw part, 38 rib, 40 hanging hand rod (metal rod) ), 41 rotating shaft portion, 42a first extension portion, 42b second extension portion, 43 handle portion.

Claims (7)

A liquid supply device that is detachably attached to the device main body and supplies liquid to the device main body in accordance with the operation of the device main body,
A tank portion having an upper plate covering the upper side and storing a liquid therein;
And a handle provided on the upper plate,
The handle includes a metal bar rotatably attached to the upper plate, and a resin handle cover attached to the metal bar,
The handle cover has a concave portion for receiving the metal bar on one of the surfaces positioned in the rotation direction of the handle, and a claw portion for locking the metal bar received in the concave portion. Liquid supply device. The liquid supply device according to claim 1, wherein the handle cover is formed of one member formed by injection molding. The liquid supply device according to claim 1, wherein the claw portion is formed in the concave portion. The liquid supply according to any one of claims 1 to 3, wherein the claw portion is provided on a wall surface that holds the metal bar from below in a state where the handle is raised, among wall surfaces constituting the concave portion. apparatus. The metal rod includes a rotating shaft portion attached to the upper plate, first and second extending portions extending upright from the rotating shaft portion, and a rotating shaft of the first and second extending portions. A handle that connects the ends on the opposite side to the drive shaft side,
5. The liquid supply device according to claim 1, wherein the claw portion is provided so as to lock at least one or more of each of the first and second extension portions and the handle portion. 6. . Further provided is a resin tank cover that covers the upper plate,
The tank cover includes a handle storage portion for receiving the handle on an upper surface,
2. The handle cover is prevented from falling off from the metal rod by contacting a wall surface of the tank cover constituting the handle storage portion in a state where the handle is raised. 6. The liquid supply device according to any one of items 1 to 5, A liquid fuel combustion device comprising the liquid supply device according to claim 1.

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