JP3822147B2 - Liquid supply apparatus and liquid fuel combustion apparatus provided with the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a liquid fuel combustion apparatus represented by an oil fan heater and an oil stove. Furthermore, the present invention relates to a liquid supply device that is detachably mounted on these devices and supplies a liquid to the device main body according to the operation of the device main body.
[0002]
[Prior art]
2. Description of the Related Art Cartridge type liquid supply devices that are detachably attached to an apparatus main body and supply a liquid according to the operation of the apparatus main body are applied to various apparatuses. As one of them, a liquid fuel combustion apparatus is known. In the following, an oil fan heater is illustrated as an example of the liquid fuel combustion apparatus, and the structure thereof will be described.
[0003]
FIG. 8 is a view showing the appearance of a conventional oil fan heater. The equipment body of the oil fan heater has a casing 101, and the casing 101 is placed on a mounting table 105. A combustion unit and a liquid supply device are accommodated in the housing 101. The concept of the liquid supply device includes a so-called “fuel tank” that is handled as a single device.
[0004]
As shown in FIG. 8, an air outlet 102 that blows warm air into the room is formed in the lower part of the front plate 106 of the housing 101. On the top panel 108 of the device main body that closes the upper surface of the casing 101, an operation unit 103 in which switches for switching the operation state are accommodated is disposed. An opening is provided at a predetermined position of the top plate 108 of the apparatus body, and the fuel tank 110 is detachably attached to the inside of the casing 101 through this opening.
[0005]
FIG. 9 is a view showing an appearance of a fuel tank mounted on the oil fan heater. The fuel tank 110 includes an upper plate that covers the upper portion, 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 be turned upside down during the fuel supply operation, and has a supply port 144 above the tank portion 112. Therefore, 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 in the vicinity of the supply port cover 121.
[0006]
Further, a handle 130 is provided above the fuel tank 110 for carrying the fuel tank or attaching / detaching it to / from the apparatus main body during the fuel supply operation. The handle 130 is configured to be accommodated in a handle accommodating portion 123 provided on the upper surface of the tank cover 120 so that the upper surface thereof is continuous with the upper surface of the tank cover 120.
[0007]
In the state where the fuel tank 110 having the above configuration is mounted on the device main body, as shown in FIG. 8, the upper surface of the fuel tank 110 is exposed from the top plate 108 of the device main body. For this reason, at the time of refueling work, the work of taking in and out the fuel tank 110 from the upper side of the apparatus 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 disposed on the upper surface of the fuel tank 110 from one point to another point. The handle 130 includes a metal suspension rod 140 that is rotatably attached to the upper plate of the tank portion 112, and a resin handle cover 131 that covers the suspension rod 140.
[0009]
FIG. 11 is a side view of the upper part of the fuel tank as viewed from the side. As shown in the figure, the handle cover 131 is composed of two members, a handle upper cover 131a and a handle lower cover 131b, in which a suspension rod 140 is included and positioned.
[0010]
12 is a cross-sectional view taken along line XII-XII in FIG. Both ends of the suspension rod 140 pass through holes 134 provided inside the both ends of the handle cover 131 and pass through holes provided in a metal handle mounting plate 150 attached to the upper plate of the tank portion 112. Yes. As a result, the suspension rod 140 is rotatably supported on the upper plate of the tank portion 112. As a result, when the fuel tank 110 is lifted by holding the handle 130, the tensile load applied to the handle 130 is applied to the metal handle mounting plate 150.
[0011]
By adopting the handle structure having the above configuration, it is possible to provide an oil fan heater having a fuel tank that is easy to hold and easy to handle even for 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 decomposability. The handle disassembly refers to disassembling when recycling or disassembling during maintenance.
[0013]
As shown in FIG. 13, in the conventional handle structure, the handle rod cover 140 is fitted into the recess 135 and the hole 134 provided in the handle lower cover 131b, and the handle upper cover 131a is inserted into the handle so as to sandwich the handle rod 140. The cover upper cover 131a and the handle lower cover 131b are fixed by screws 139 on the lower cover 131b. In such an assembling structure, it is necessary to attach and detach the screws at the time of assembling or disassembling, and the work is complicated.
[0014]
In addition, after the handle cover is assembled to the handle rod, elastic deformation of the handle rod in the lateral direction (the arrow X direction shown in FIG. 13) is suppressed by the handle cover. Could not be assembled. For this reason, the handle is assembled to the upper portion of the tank portion in the procedure of attaching the handle cover to the handle rod after the handle rod is assembled to the handle mounting plate located on the upper surface of the tank portion in advance. Due to the limitation of the procedure, the workability when assembling the handle to the fuel tank has become more complicated.
[0015]
Further, in the conventional handle structure, the number of parts constituting the handle is large, resulting in an increase in manufacturing cost.
[0016]
Accordingly, the present invention has been made to solve the above-mentioned problems, and a liquid supply apparatus having a handle structure that can be easily assembled and disassembled and has a reduced number of parts, and liquid fuel combustion provided with the same An object is to provide an apparatus.
[0017]
[Means for Solving the Problems]
A liquid supply apparatus according to the present invention is a liquid supply apparatus that is detachably attached to an apparatus main body and supplies liquid to the apparatus main body in accordance with the operation of the apparatus main body, and includes a tank portion and a handle. The tank portion has an upper plate that covers the upper side, and stores the liquid therein. The handle is provided on the upper plate of the tank portion, and includes a metal rod that is rotatably attached to the upper plate of the tank portion, and a resin handle cover that is attached to the metal rod. 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 positioned in the rotation direction of the handle.
[0018]
In this way, by providing a recess for receiving the metal rod on one side of the handle cover and a claw portion for locking the metal rod, the handle can be handled in a very simple operation by simply pressing the handle cover against the metal rod. Assembling can be done. Further, the handle can be disassembled by a simple operation of simply pulling the handle cover away from the metal bar. On the other hand, since the metal bar is locked by the claw portion, the lock of the metal bar by the handle cover is stably maintained during use.
[0019]
In the liquid supply apparatus according to the present invention, for example, the handle cover is preferably made of one member formed by injection molding. Thus, by making the handle cover a resin cover made of one member formed by injection molding, the handle can be configured with two parts of the metal rod and the handle cover made of one member. The score is greatly reduced, and the manufacturing cost can be reduced.
[0020]
In the liquid supply apparatus according to the present invention, for example, it is preferable that the claw portion is formed in the recess. As described above, 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 grip comfort of the handle is remarkably improved.
[0021]
In the liquid supply apparatus according to the present invention, for example, the claw portion may be provided on a wall surface that holds the metal rod from below in a state in which the handle is raised, among the wall surfaces constituting the recess. preferable. In this way, by providing a claw portion on the wall surface of the recess that holds the metal rod from below in the state that caused the handle, even when a vertical downward tensile load applied to the metal rod when the fuel tank is lifted, The metal bar and the handle cover are stably locked. As a result, it is possible to prevent the handle cover from falling off the metal rod.
[0022]
In the liquid supply apparatus 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 and extending from the rotating shaft portion, A handle portion connecting ends of the first and second extending portions opposite to the rotation shaft portion side, and at least one of each of the first and second extending portions and the handle portion It is preferable that the nail | claw part is provided so that the above may be latched. Thus, by providing one or more claw portions on each of the three sides of the handle cover corresponding to each of the first and second extending portions and the handle portion of the metal rod, the relationship between the metal rod and the handle cover is provided. The stop is stably maintained. For this reason, it becomes possible to more reliably prevent the handle cover from falling off the metal rod.
[0023]
The liquid supply device according to the present invention further includes a resin tank cover that covers the upper plate, the tank cover includes a handle storage portion that receives the handle on the upper surface, and the handle cover causes the handle. Therefore, it is desirable that the handle cover is prevented from falling off from the metal rod by abutting against the wall surface of the tank cover constituting the handle storage portion. In this way, by configuring the handle cover to abut against the wall surface of the tank cover in a state where the handle is raised, the handle cover is prevented from falling off from the metal rod.
[0024]
A liquid fuel combustion apparatus according to the present invention includes any one of the liquid supply apparatuses described above. By using a liquid fuel combustion apparatus including any one of the liquid supply apparatuses described above, it is possible to provide a liquid fuel combustion apparatus that is excellent in terms of assembly and decomposability and that has a reduced number of parts. Therefore, the manufacturing cost can be greatly reduced.
[0025]
DETAILED DESCRIPTION OF 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 fuel tank structure)
FIG. 1 is an external view showing a structure of an oil fan heater according to an embodiment of the present invention. The main body of the oil fan heater in the present embodiment has a casing 1, and the casing 1 is placed on a mounting table 5. A fuel tank 10 that is a combustion unit or a liquid supply device is accommodated inside the housing 1.
[0027]
As shown in FIG. 1, an air outlet 2 for blowing warm air into the room is formed in the lower portion of the front plate 6 of the housing 1, and switches for switching the operation state are accommodated in the upper portion of the front plate 6. The operation unit 3 is arranged. 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 inside of 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 includes an upper plate that covers the upper portion, and includes a tank portion 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 portion 12. The fuel tank 10 shown in FIG. 2 is a fuel tank configured so as not to be turned upside down during a fuel supply operation, and has a supply port 44 above the tank portion 12. Therefore, 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]
Further, a handle 30 is provided above the fuel tank 10 for carrying the fuel tank or attaching / detaching it to / from the apparatus main body at the time of fuel supply operation. The handle 30 is housed in a handle housing 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]
In the state where the fuel tank 10 having the above configuration is mounted on the device main body, as shown in FIG. 1, the upper surface of the fuel tank 10 is exposed from the top plate 8 of the device main body. Therefore, the work of taking in and out the fuel tank can be performed very easily.
[0031]
(Structure of the handle)
FIG. 3 is a top view of the fuel tank in 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 disposed on the upper surface of the fuel tank 10 from one point to another point. The handle 30 includes a metal rod rod 40 that is a metal rod rotatably attached to the upper plate of the tank unit 12, and a resin handle cover 31 that is attached to the rod rod 40.
[0032]
(Shape of the suspension rod)
FIG. 4 is a surface view showing the shape of the handle rod of the handle according to the present embodiment. The suspension 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 suspension rod 40 is pivotally attached to a handle attachment plate attached to the upper plate of the tank portion 12, and a first and second extending from the rotation shaft portion 41. The extending portions 42a and 42b and the handle portion 43 connecting the ends of the first and second extending portions 42a and 42b opposite to the rotating shaft portion 41 side. In addition, in order to prevent the suspension rod 40 from dropping off from the handle mounting plate, the tip of the rotating shaft portion 41 is subjected to header processing (press processing is performed in the vicinity of the tip of a metal rod-shaped member, and wings are formed on both sides. Processing to form a pair of spreading protrusions) is performed.
[0033]
(Grip cover shape)
FIG. 5 is a diagram showing the shape of the handle cover in the present embodiment, where (a) is a front view and (b) is a back view. As shown in FIGS. 5 (a) and 5 (b), the handle cover 31 has a U-shape, and a portion 32a corresponding to the first and second extending portions of the suspension rod. 32b and 3 sides of the part 33 corresponding to the handle part of a suspension rod.
[0034]
As shown in FIG. 5 (b), a recess 35 for receiving the lifting rod is formed on the inner side of the three sides on the back surface of the handle cover 31. In addition, the back surface of the handle cover 31 provided with the recess 35 corresponds to one side of surfaces positioned in the rotation direction of the handle after the handle is attached to the upper portion of the tank portion. A cutout 34 for pulling out the suspension rod is provided at a portion corresponding to the pivot shaft portion of the suspension rod. A claw portion 37 is provided at a predetermined position of the inner peripheral side wall surface 36 constituting the recess 35 to hold the received suspension rod.
[0035]
It is preferable that at least one claw portion 37 is provided on each of the three sides. In the handle cover 31 shown in the drawing, one claw portion 37 is provided on the side corresponding to the first and second extending portions of the suspension rod. Four are provided on each side corresponding to the handle portion. In addition, the claw portion 37 is preferably provided on the wall surface that holds the suspension rod from below, among the wall surfaces constituting the recess 35 in the state where the handle 31 is raised. The inner peripheral side wall surface 36 of the portion 33 corresponding to the handle portion of the suspension rod corresponds to this wall surface. A plurality of reinforcing ribs 38 are provided on the back surface of the handle cover 31.
[0036]
(Assembly structure of the handle)
FIG. 6 is an exploded perspective view for explaining the handle assembly structure in the present embodiment. As shown in the figure, in the handle assembly structure according to the present embodiment, the handle 30 is assembled by fitting the suspension rod 40 into the recess 35 provided on the back side of the handle cover 31. At this time, when the suspension rod 40 is fitted over the claw portion 37 provided inside the recess 35, the suspension rod 40 received in the recess 35 is locked by the claw portion 37. Due to the locking of the claw portion 37, the handle cover 31 is prevented from falling off from the hanging rod 40.
[0037]
When assembling the handle to the actual fuel tank, the pivot shaft 41 of the suspension rod 40 is attached in advance through the hole of the handle attachment plate attached to the upper plate of the tank portion 12, and then suspended. By pressing the handle cover 31 against the hand rod 40, the handle cover 31 is assembled to the lifting rod 40 to complete.
[0038]
(Handle action)
FIG. 7 is an upper side view of the tank portion for explaining the operation of the handle in the present embodiment. (A) shows a state in which the handle is tilted, and (b) shows a state in which the handle is caused. Show. As shown in FIG. 7A, when the handle 30 is tilted, the handle 30 is stored in a handle storage portion 23 provided on the upper surface of the tank cover 20. In a state where 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, the handle 30 can be gripped.
[0039]
A protrusion 25 is formed on the upper surface of the wall surface 24 generated by providing the handle housing portion 23 on the tank cover 20. As shown in FIG. 7B, in the 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 suspension rod 40 is smaller than the thickness a of the handle cover 31. By doing so, the handle cover 31 is prevented from falling off from the hanging rod 40. This is because the handle cover 31 is prevented from dropping from the suspension rod 40 when the handle cover 31 is brought into contact with the protrusion 25 in the state where the handle 30 is raised by setting the dimensions as described above.
[0040]
(Action / Effect)
By adopting the handle structure having the above-described configuration, the work of attaching the handle cover to the metal rod can be performed very easily. Also, the disassembly work 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 prevented from falling off from the metal bar at the time of use, and the stable lock of the handle cover and the metal bar is maintained. In addition, since the handle can be easily disassembled during recycling, the effect of promoting recycling can be obtained.
[0041]
(Application of liquid supply device to various devices)
The liquid supply apparatus described above is applicable to all apparatuses that operate using liquid, such as liquid fuel combustion apparatuses such as petroleum fan heaters and petroleum stoves, and air conditioners such as humidifiers.
[0042]
In the above 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. Of course, the present invention is also applicable.
[0043]
Thus, the above-described embodiment disclosed herein is illustrative in all respects and is not restrictive. The technical scope of the present invention is defined by the terms of the claims, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
[0044]
【The invention's effect】
According to the present invention, it is possible to provide a liquid supply apparatus having a handle structure that can be easily assembled and disassembled and reduced in the number of parts, and a liquid fuel combustion apparatus including the liquid supply apparatus. Thereby, reduction of manufacturing cost and simplification of work at the time of recycling are achieved.
[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 surface view showing the shape of a suspension rod according to an embodiment of the present invention.
5A is a front view and FIG. 5B is a back view showing the shape of the handle cover in the embodiment of the present invention.
FIG. 6 is an exploded perspective view showing a handle assembly structure according to an embodiment of the present invention.
FIGS. 7A and 7B are side views showing the operation of the handle according to the embodiment of the present invention, FIG. 7A is a diagram showing a state in which the handle is tilted down, and FIG. 7B is a diagram showing a state in which the handle is raised; is there.
FIG. 8 is an external view of a conventional oil fan heater.
FIG. 9 is an external view of a fuel tank mounted on the conventional oil fan heater shown in FIG.
10 is a top view of the fuel tank shown in FIG. 9. FIG.
FIG. 11 is a top side view of the fuel tank shown in FIG. 9;
12 is a cross-sectional view taken along line XII-XII in FIG.
FIG. 13 is an exploded perspective view showing a conventional handle assembly structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Housing | casing, 2 blower outlet, 3 operation part, 5 stand, 6 front plate, 8 top plate, 10 fuel tank, 12 tank part, 20 tank cover, 21 replenishment port cover, 22 opening / closing button, 23 handle storage part, 24 Wall surface (contains tank storage part), 25 projections, 30 handle, 31 handle cover, 32a (corresponding to the first extension part of the suspension rod), 32b (corresponding to the second extension part of the suspension rod) Part), 33 (corresponding to the handle part of the suspension rod), 34 notch, 35 recess, 36 inner wall surface of the recess (37), 37 claw part, 38 rib, 40 suspension rod (metal rod) ), 41 rotating shaft part, 42a first extending part, 42b second extending part, 43 handle part.

Claims (7)

A liquid supply device that is detachably attached to the device body and supplies liquid to the device body according to the operation of the device body,
A tank part that has an upper plate that covers the upper part and stores liquid therein;
A handle provided on the upper plate,
The handle includes a metal rod rotatably attached to the upper plate, and a resin handle cover attached to the metal rod,
The handle cover has a recess for receiving the metal rod and a claw portion for locking the metal rod received in the recess on one surface of the surfaces positioned in the rotation direction of the handle. Liquid supply device. The liquid supply apparatus according to claim 1, wherein the handle cover is made of one member formed by injection molding. The liquid supply device according to claim 1, wherein the claw portion is formed in the recess. 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 rod from below in a state where the handle is raised among the wall surfaces constituting the recess. 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 the rotation of the first and second extending portions. Having a handle portion connecting ends opposite to the moving shaft side,
5. The liquid supply device according to claim 1, wherein the claw portion is provided so as to lock at least one of each of the first and second extending portions and the handle portion. . A resin tank cover covering the upper plate;
The tank cover includes a handle storage portion that receives the handle on an upper surface,
2. The handle cover is prevented from falling off from the metal rod by abutting the wall surface of the tank cover constituting the handle storage portion in a state where the handle is raised. To 5. The liquid supply apparatus according to any one of 5 to 5. The liquid fuel combustion apparatus provided with the liquid supply apparatus in any one of Claim 1 to 6.

Images