JPH0979580A - Sunken foot warmer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make uniform temperature in a furnace box even without use of a coverlet by providing a heater part substantially over the entire surface of the bottom surface and the inside surface of the furnace box and substantially over the entire surface of a lower surface of a top plate part of a table disposed above the furnace box, and setting heating capacity of the heating part on the side of the furnace box to be higher than that on the side of the table. SOLUTION: A heating part 4 is provided over substantially the entire surfaces of the bottom surface and inside surface of a furnace box 2, and a heater part 5 is provided substantially over the entire surface of the lower surface of a top plate part 28 of a table 3 disposed above the furnace box 2. Heating capacity of the heating part 4 on the side of the furnace box 2 is set to be higher than that of the heating part 5 on the side of the table 3. The heating part 4 is a surface heater where a heater wire covered with a heat insulation insulating layer and a uniform heat aluminum sheet are integrally formed into a surface shape. The heating part 5 is constructed such that a surface uniform heat plate, a heater, an aluminum sheet, and a heat insulation insulating layer are laminated and united in order from the lower surface to the upper surface, and heat is prevented from escaping to the top plate 28 side with use of the heat insulation material and heater heat is effectually dissipated into the furnace box 2 using the surface uniform heat plate.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a moat kotatsu.

[0002]

2. Description of the Related Art Generally, a heater is provided in a furnace box of a moat kotatsu, and a seating table arranged above the furnace box is covered with a cover or the like.
The temperature inside the furnace box is kept uniform by preventing the inflow of outside air from the gap between the table and the furnace box.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is an object of the present invention to make it possible to easily equalize the temperature in a furnace box without using a quilt. Another object is to reduce the size and thickness of the heating unit on the table side, and to improve reliability and safety of mounting the heating unit.

[0004]

In order to solve the above-mentioned problems, the invention according to claim 1 of the present invention provides a heating section 4 on substantially the entire bottom surface and inner side surface of the furnace box 2, and at the same time, the furnace box 2 The heating unit 5 is provided on substantially the entire lower surface of the top plate portion 28 of the table 3 arranged above the table 3, and the heating capacity of the heating unit 4 on the furnace box 2 side is higher than that of the heating unit 5 on the table 3 side. It is characterized by being set high, and by configuring in this way, heating can be performed from above and below by the heating unit 4 on the furnace box 2 side and the heating unit 5 on the table 3 side, without using a quilt, etc. Since the temperature inside the furnace box 2 can be easily equalized and the heating unit 5 on the side of the table 3 has an auxiliary role, the heater 7 on the side of the table 3 can be made small and save power. be able to.

In the invention according to claim 2, the heating unit 5 on the side of the table 3 according to claim 1 is provided with a surface soaking plate 92, a heater 7, an aluminum sheet 90, and a heat insulating material 91 from the lower surface to the upper surface. The heat insulating material 91 can prevent heat from escaping to the top plate portion 28 side while the heat insulating material 91 prevents the heat from escaping to the heater 7. The heat can be efficiently dissipated in the furnace box 2.

According to the third aspect of the present invention, a corner member 31 having a predetermined thickness is interposed between the outer peripheral portion of the heating section 5 on the side of the table 3 and the lower surface of the top plate portion 28, The corner member 31 is characterized by being integrally formed with a protective portion for protecting the outer peripheral portion of the heating portion 5, and with this configuration,
A predetermined gap can be secured between the heating portion 5 and the lower surface of the top plate portion 28 by the corner member 31, contact between the heating portion 5 and the top plate portion 28 can be prevented, and the heating portion 5 can be protected by the protection portion of the corner member 31. It is possible to secure the safety of use by protecting the.

The invention according to claim 4 holds the switch part 35 of the heating part 5 on the side of the table 3 according to claim 1 on the top plate part 28 via the switch part holding member 36, and at the same time, the switch part 35. The power plug receiver 57 is held on the top plate portion 28 via a plug receiver holding member 51 which is a member different from the switch member holding member 36, and the thickness of the plug receiver holding member 51 is made thicker than that of the switch member holding member 36. It is characterized in that the plug receiving and holding member 51 is prevented from being deformed due to the load applied when the plug is inserted and removed.

The invention according to claim 5 is characterized in that the switch part holding member 36 and the plug receiving and holding member 51 according to claim 4 are foldably connected to each other. The switch part holding member 36 and the plug receiving and holding member 51 can be folded to be compact during transportation and packaging, and the angle can be adjusted by expanding the two when fixing the top plate part 28 to the pier 27.

According to a sixth aspect of the invention, an operation panel 100 having a power switch, an operation knob and the like is attached to the front side of the switch part holding member 36 of the fourth aspect, and the rear part of the switch part holding member 36. A fixing piece 50 fixed to the pier 27 of the top plate portion 28 is provided on the side, and the fixing piece 50 and the pier 27 are provided.
It is characterized in that the fixing piece 50 can be fixed to the splint 27 with a gap provided between the operation panel 100 and the top panel portion 28 at a predetermined position. When fixing the fixing piece 50 of the switch holding member 36 to the pier 27, for example, the pier 2
The switch panel holding member 36 may be distorted due to variations in the thickness of the switch panel 7, and the operation panel 100 may be displaced accordingly. Since the fixing piece 50 can be fixed to the pier 27 with a predetermined gap G provided therebetween, variations in the thickness of the pier 27 can be absorbed in the gap G, and the operation panel 100 can be accurately positioned. Can be positioned.

According to a seventh aspect of the present invention, the pier 27 of the top plate portion 28 according to the fourth aspect is connected to the terminal 5 of the power plug receiver 57.
8 is formed with an insertion portion 56, and a cover member 60 having a plug insertion hole 61 is provided on the surface of the insertion portion 56 opposite to the power plug receiver 57. The cover member 60 also serves as a reinforcement portion and the ceiling. It is characterized by integrally forming a pressing portion 65 that is pressed and held by the pier 27 of the plate portion 28,
With such a configuration, the cover member 60 has a function of blinding, and even when a load is applied to the plug receiving / holding member 51 when the plug is inserted / removed, the pressing portion 65 that also functions as a reinforcing portion prevents the plug receiving / holding member 51 from moving. Deformation can be prevented, and moreover, the plug receiving and holding member 51 can be more surely attached by pressing the pressing portion 65 against the crosspiece 27 of the top plate portion 28.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An example of an embodiment of the present invention will be described below. The moat kotatsu 1 is a furnace box 2 as shown in FIG.
And a table 3 arranged above the furnace box 2, and heating sections 4 and 5 arranged on the furnace box 2 and the table 3. Here, the furnace box 2 has an underfloor space that is surrounded by four inner side surfaces and a bottom surface and opens upward, and the heating unit 4 is provided over substantially the entire bottom surface and inner side surface of the furnace box 2. Has been. The heating unit 4 is a planar heater, and as shown in FIG. 2, a heater wire covered with a heat-resistant insulating layer and a soaking aluminum sheet are integrally formed in a planar shape, and the bottom part of the furnace box 2 is formed. Has a rectangular heater bottom portion 6a laid on the inside thereof, and four heater side surfaces 6b lined inside the four sides of the furnace box 2 with bending lines 9 around the outside of the heater bottom portion 6a. Are integrally formed, and the heater side surface portion 6b is provided along the bending line 9.
Can be bent freely. The heating capacity of the heating unit 4 is set to be higher than the heating capacity of the heater 7 of the heating unit 5 on the side of the table 3 described later. The end of the heating unit 4 is connected to the power cord 11 and the controller cord 13 that connects the controller 12 via the terminal case 10. Then, the heater bottom surface portion 6a is provided on the bottom surface portion of the furnace box 2.
And a carpet cover 110 (FIG. 1) are laid in order, and a velcro tape 14 is provided on the back surface of the heater side surface portion 6b.
(FIG. 2) is attached, while a raised portion (not shown) to which the magic tape 14 is detachably attached is provided on the inner side surface of the furnace box 2, whereby the heater side surface portion 6b is provided. Can be easily held on the inner surface of the furnace box 2. Reference numeral 15 in FIG. 1 denotes an air cap winding portion.

Further, as shown in FIG. 3, a power source portion covered with a panel cover 16 is provided on a part of the inner side surface of the furnace box 2, and a heat resistant outlet 18 and a plug 19 are provided in the power source portion. The power cord 11 of the heating part 4 on the side of the furnace box 2 is connected via the above, and the power cord 20 of the heating part 5 on the side of the table 3 described later is also connected. 21 in FIG.
Is an outer frame, 22 is a floor, 23 is joist, 24 is a haul, and 25 is a reinforcing bar.

On the other hand, a table 3 arranged above the furnace box 2.
As shown in FIG. 4, a plurality of piers 27 are attached inside the outer peripheral frame 26 in a vertical and horizontal lattice pattern, and a top plate portion 28 on which the Lauan plywood 500 serving as a table surface is placed, and a top plate. Legs 29 protruding from the four corners of the lower surface of the portion 28, and the top plate portion 2
8 and a heating unit 5 provided over substantially the entire lower surface. This heating unit 5 is a planar heater, and
, The surface soaking plate 92 from the lower surface to the upper surface,
The heater 7, the aluminum sheet 90, and the heat insulating material 91 are laminated in this order and integrated.

In the heater 7, a heater wire covered with a heat-resistant insulating layer and an aluminum foil are integrally formed in a planar shape by hot pressing. The heating capacity of the heater 7 is the heating unit on the furnace box 2 side. It is set lower than the heating capacity of No. 4 and is only an auxiliary one. A surface soaking plate 92 is attached to the lower surface of the heater 7 with an adhesive or the like. The surface heat equalizing plate 92 is made of, for example, a galvanized steel plate, and the surface thereof has a flocked surface for improving the touch. On the other hand, a flocked surface is not formed on the upper surface of the heater 7, and a thermostat 200 for preventing excessive temperature rise, and a distance between the heater 7 and the pier 27 of the top plate portion 28 are secured on this surface. Heater 7
The spacers 201 for protecting each are arranged respectively. Further, an aluminum sheet 90 is provided on the upper surface of the heater 7, and the double-sided tape 3 is provided on the upper surface of the aluminum sheet 90.
The heat insulating material 91 is bonded via 00. Insulation 91
Is made of a heat insulating material having a cushioning property, for example, polyester felt. As shown in FIG. 4C, a part of the heat insulating material 91 is a pier 27 with the heating part 5 attached to the top plate part 28. It is pressed against the heater 7, and this pressed portion has a structure which also serves as a spacer between the crosspiece 27 and the heater 7.

By providing the heating unit 4 on the bottom surface and the inner side surface of the furnace box 2 and the heating unit 5 on the lower surface of the top plate 28 of the table 3, both heating units 4, 4 are provided. 5 can be heated from the top and bottom, without using a quilt
The temperature inside the furnace box 2 can be easily made uniform. Moreover, since the heating unit 5 on the side of the table 3 is merely an auxiliary unit, the heating unit 7 can be downsized and the power consumption can be reduced. Therefore, the protrusion of the heating unit 5 from the lower surface of the top plate portion 28 can be achieved. The size can be reduced, the design is improved, and the hands and feet are less likely to hit the heating unit 5 on the side of the table 3 and the usability is improved.
Further, the heating unit 5 is provided with a surface soaking plate 9 from the lower surface to the upper surface.
2. Since the heater 7, the aluminum sheet 90, and the heat insulating material 91 are laminated in this order and integrated, the heat can be prevented from escaping to the top plate portion 28 side by the heat insulating material 91, while the heater is provided by the surface soaking plate 92. There is also an advantage that the heat of No. 7 can be efficiently dissipated in the furnace box 2 and the thermal efficiency can be improved.

Next, the heating portion 5 on the side of the table 3 is attached to the top plate portion 2.
8 is an example of an embodiment in which it is attached to the lower surface of FIGS.
Shown in The heating part 5 on the side of the table 3 has a size that covers substantially the entire lower surface of the top plate part 28, and in order to avoid interference between the top plate part 28 and the mounting parts of the legs 29 at the four corners of the heating part 5. Is provided with a notch portion 30 (FIG. 7). On the other hand, the top plate 2
L-shaped portions 27a, 2 of the pier 27 located at the four corners
Corner members 31 are arranged along the lower surface of 7b.
As shown in FIG. 10, for example, the corner member 31 is composed of a pair of strip-shaped plates 31a having an L-shaped cross section, and the abutting end faces 31b of the strip-shaped plates 31a are provided with an angle θ of approximately 45 °. An L-shaped corner member 31 in plan view is configured by abutting the strip-shaped plates 31a. As shown in FIG. 8, the corner member 31 is formed into L-shaped portions 27a and 27b of the pier 27 of the top plate portion 28.
9, the outer peripheral end of the heating portion 5 is brought into contact with the lower surface of the horizontal portion 31c of the corner member 31, and the mounting screw 600 is attached.
By attaching the heating unit 5 to the pier 27 via the corner member 31, the heating unit 5 is formed by the thickness of the horizontal portion 31c.
Is in a state of floating from the lower surface of the pier 27, and accordingly, the entire heating portion 5 is held so as not to contact the lower surface of the pier 27 of the top plate portion 28, and the gap between the heating portion 5 and the pier 27 is maintained by the corner member 31. Has been secured. Further, the vertical portion 31d of the corner member 31 projects below the outer peripheral end portion of the heating portion 5, and the vertical portion 31d also serves as a protective portion that protects the outer peripheral end portion of the heating portion 5.

Further, the heating portion 5 is attached to the lower surface of the top plate portion 28 also in the outer peripheral portion other than the cutout portion 30, and in the present embodiment, as shown in FIG. A mounting piece 32 is provided inside the center of the side of the frame 26, and the outer peripheral end of the heating section 5 can be mounted on the lower surface of the mounting piece 32 with a mounting screw. In this case, for example, a spacer (not shown) having a predetermined thickness is interposed between the lower surface of the mounting piece 32 and the heating portion 5, and the horizontal portion 3 of the corner member 31 is provided.
It is possible to adjust the height to be substantially the same as the lower surface of 1c.

Therefore, the corner member 31 can secure a predetermined gap between the heating portion 5 and the lower surface of the top plate portion 28, prevent the contact between the heating portion 5 and the top plate portion 28, and prevent the corner member 31 from contacting. The vertical portion 31d serves as a protection portion that protects the outer peripheral portion of the heating portion 5, so that the heating portion 5 can be sufficiently protected, and there is no fear of injuring a hand or foot at the end of the heating portion 5, and safety in use. Is improved.

Next, an example of an embodiment in which the switch portion 35 of the heating portion 5 on the side of the table 3 is attached to the lower surface of the top plate portion 28 is shown in FIGS. A switch portion holding member 36 that holds the switch portion 35 of the heating portion 5 on the side of the table 3 is fixed to the lower surface of the crosspiece 27 of the top plate portion 28. FIG. 14 and FIG.
In FIG. 5, 37 is a connector for connecting to the heater 7, 38 is a thermal fuse, 39 is a heating resistor portion, 40 is a thermostat for temperature adjustment, and 41 is an insulating sheet. The switch part holding member 36 is formed in a substantially flat plate shape made of, for example, a galvanized steel plate, and as shown in FIG. 11, between the lower surfaces of two adjacent parallel piers 27 in one corner part of the top plate part 28. Have been hung over. Left and right fixing pieces 50, which can be fixed to the lower surface of the pedestal 27 by fixing screws, are integrally formed at both ends of the switch holding member 36. In the present embodiment, the left-side fixing piece 50 is located in front of the right-side fixing piece 50.
A space is formed which is formed at a position deviated from the above position and is capable of connecting a plug receiving and holding member 51, which will be described later, to the left side corner portion on the rear side of the switch portion holding member 36. This allows
As will be described later, when the switch holding member 36 and the plug receiving and holding member 51 are rotatably connected by the rivet 54, the fixing piece 50 does not get in the way, and the connecting work can be facilitated.

An operation panel 100 made of, for example, a resin molded product is integrally provided on the front side of the switch holding member 36. The operation panel 100 is shown in FIG.
As shown in (b), a power switch 101, an operation knob 102 for temperature adjustment, an acrylic light guide plate 103 for covering the power lamp, etc. are provided. The operation panel 100 is fitted into an opening opened on the side surface of the outer peripheral frame 26 of the top plate portion 28, and is fixed by a mounting screw. That is, the operation panel 100 is attached to the outer peripheral frame 26 of the top plate portion 28, while the switch portion holding member 36 integrated with the operation panel 100 is attached to the pier 27 of the top plate portion 28. Here, the operation panel 100 is attached to the outer peripheral frame 6 of the top plate portion 28.
When the fixing piece 50 of the switch holding member 36 is fixed to the pier 27 in the state of being positioned in the mounting hole of
For example, the switch part holding member 36 may be distorted due to variations in the thickness of the pier 27 and the like, and the operation panel 100 may be displaced accordingly. In the present embodiment, as shown in FIG. 14C. Fixed piece 5 of switch part holding member 36
0 and a predetermined gap G between the pier 27 and the fixing piece 50 can be fixed to the pier 27 with a fixing screw 400, so that variations in the thickness of the pier 27 and the like are caused in the gap G. The operation panel 100 can be positioned at an accurate position, and the operation panel 100 can be mounted with a good appearance.

Further, on the rear side of the switch part holding member 36, a plug receiver holding member 51 for holding the power plug receiver 57 of the switch part 35 is arranged. The plug receiving and holding member 51 is formed thicker than the switch portion holding member 36. By thus forming the thickness of the plug receiving and holding member 51 to be thicker than that of the switch portion holding member 36, the plug receiving and holding member 5 is prevented from being deformed by the load applied when the plug is inserted and removed.
It can be prevented by increasing the wall thickness of 1. Further, in this embodiment, with the front end portion of the plug receiving and holding member 51 being overlapped with the left side corner portion on the rear side of the switch portion holding member 36, the rivets 54 can rotate the both 36 and 51 horizontally. Further, fixing pieces 52 and 53 that can be fixed to the lower surface of the pier 27 are provided on the left side end portion and the rear end portion of the plug receiving and holding member 51, respectively. The fixing piece 52 at the side end portion of the plug receiving and holding member 51 is fixed to the lower surface of the tree 27 to which the left fixing piece 50 of the switch holding member 36 is fixed by a fixing screw at a position rearward of the fixing piece 50. Has been done.

Here, by rotatably connecting the switch part holding member 36 and the plug receiving and holding member 51 with the rivet 54, the switch part holding member 36 and the plug receiving and holding member 51 can be bent, so that It is possible to make it compact by transporting and packing the parts, and it is possible to adjust the angle by unfolding it when fixing it to the pedestal 27 of the top plate part 28, so it is possible to easily handle non-rectangular pier 27 temporarily. There is an advantage that you can.

Further, as shown in FIG. 11, an insertion portion 56 is formed in the pier 27 to which the fixing piece 52 at the side end portion of the plug receiving and holding member 51 is fixed, and the plug portion is inserted into this insertion portion 56. The terminal 58 of the power plug receiver 57 held by the receiver holding member 51 is inserted. The width W of the insertion portion 56 is set to be slightly larger so that the terminal 58 can be inserted with a margin. Also, the insertion part 5
A cover member 60 for blindfolding is arranged on the surface of 6 on the side opposite to the power plug receiver 57. This cover member 60
As shown in FIG. 13, it is made of a thin plate having a plug insertion hole 61 and a mounting hole 62, and the plug can be connected to the terminal 58 of the power plug receiver 57 through the plug insertion hole 61. In this case, safety can be ensured by making the size of the plug insertion hole 61 substantially the same as the size of the plug to reduce the clearance with the plug. Further, a pressing portion 65, which doubles as a reinforcing portion of the cover member 60 and is pressed and held by the stile 27 of the top plate portion 28, is provided in the lower part of the back surface of the cover member 60 in the horizontal direction.

Here, when attaching the cover member 60 to the pier 27, as shown in FIG.
With the pressing portion 65 of No. 0 being in contact with the lower surface of the pier 27, the cover member 60 is attached to the front surface of the pier 27 with a mounting screw, and the above-mentioned corner member 31 is arranged on the lower surface side of the holding portion 65. Further, the heating unit 5 on the side of the table 3 is arranged on the lower surface of the corner member 31, and the cover member 60 is attached to the pier 27.
And the corner member 31 are sandwiched between the heating portion 5, the corner member 31, and the pressing portion 65 in this order, and the mounting screws are screwed into the pier 27, so that the pressing portion 6
5 is pressed against the lower surface of the pier 27, and the cover member 60 can be more firmly fixed to the pier 27.
Reference numeral 71 in FIG. 12 is a cord holder.

As described above, the cover member 60 has the function of blinding, and the pressing member 65 allows the cover member 60 to have a thin plate shape.
Since the plug receiving / holding member 51 is reinforced, even if a load is applied to the plug receiving / holding member 51 when the plug is inserted / removed, the pressing portion 65 also serving as the reinforcing portion can prevent the plug receiving / holding member 51 from being deformed. The pier 27
By pressing down on the lower surface, the cover member 60 causes the pier 27
Is more firmly fixed to the plug receiving and holding member 51.
The mounting strength of can be further increased.

[0026]

As described above, according to the first aspect of the present invention, the heating unit is provided on substantially the entire bottom surface and inner side surface of the furnace box, and the table is arranged above the furnace box. Since a heating unit is provided on almost the entire lower surface of the top plate of the furnace and the heating capacity of the heating unit on the furnace box side is set higher than that of the heating unit on the table side, the heating unit on the furnace box side and the table side It can be heated from the top and bottom with the heating part of the, and it is possible to easily equalize the temperature inside the furnace box without using a quilt, and the heating part on the table has an auxiliary role. Since the heater on the table side can be downsized and power consumption can be reduced, and the protruding size of the heating section from the lower surface of the top plate can be suppressed to a small size, the design is not impaired and the foot is on the table side. It is difficult to hit the heating part of and the usability becomes good.

According to a second aspect of the present invention, the heating unit on the table side of the first aspect is integrated by laminating a surface soaking plate, a heater, an aluminum sheet, and a heat insulating material in this order from the lower surface to the upper surface. Therefore, in addition to the effect of claim 1, heat can be prevented from escaping to the top plate side by the heat insulating material, while heat of the heater can be efficiently dissipated into the furnace box by the surface soaking plate. It is possible to improve the thermal efficiency.

According to the third aspect of the present invention, a corner member having a predetermined thickness is interposed between the outer peripheral portion of the heating portion on the table side and the lower surface of the top plate portion of the first aspect, and the corner member is heated. Since the protective portion for protecting the outer peripheral portion of the portion is integrally formed, in addition to the effect according to claim 1, a predetermined gap can be secured between the heating portion and the lower surface of the top plate portion by the corner member, and the heating portion and the ceiling portion can be secured. It is possible to prevent contact with the plate portion, and protect the heating portion with the protective portion of the corner member, so that there is no concern of hand injury at the end portion of the heating portion, and safety of use can be secured.

According to a fourth aspect of the invention, the switch portion of the heating unit on the table side according to the first aspect is held on the top plate portion through the switch portion holding member, and the power plug receiver of the switch portion is switched. Since it is held on the top plate through a plug receiving and holding member which is a member different from the part holding member, and the thickness of the plug receiving and holding member is formed to be thicker than that of the switch holding member,
In addition to the effect of the first aspect, it is possible to prevent the plug receiving and holding member from being deformed by the load applied when the plug is inserted and removed by increasing the thickness of the plug receiving and holding member.

According to the invention of claim 5, in addition to the effect of claim 4, the switch part holding member and the plug receiving and holding member of claim 4 are foldably connected.
When transporting or packing parts, it can be made compact by bending the switch part holding member and the plug receiving and holding member, and when fixing it to the top board part, the angle can be adjusted by expanding both parts. It can easily handle non-rectangular piers.

According to a sixth aspect of the invention, an operation panel equipped with a power switch, an operation knob and the like is attached to the front side of the switch holding member according to the fourth aspect, and the operation panel equipped with a power switch and an operating knob is attached to the rear side of the switch holding member. A fixing piece fixed to the pier of the plate portion is provided, and the fixing piece can be fixed to the pier with a gap between the fixing piece and the pier. Therefore, in addition to the effect according to claim 4, the operation is performed. When the fixing piece of the switch part holding member is fixed to the pier in a state where the panel is positioned at the predetermined position of the top plate part, the switch part holding member is distorted due to variations in the thickness of the pier, for example. The operation panel may be displaced due to this, but with a predetermined gap between the fixing piece of the switch holding member and the pier,
By allowing the fixing piece to be fixed to the pier, variations in the thickness of the pier can be absorbed in the gap, and the operation panel can be positioned at an accurate position, so that the operation panel can be mounted with a good appearance. Is.

According to a seventh aspect of the present invention, an insertion portion through which the terminal of the power plug receiver is inserted is formed on the top plate of the fourth aspect, and the surface of the insertion portion opposite to the power plug receiver is formed. 5. A cover member having a plug insertion hole is provided in the cover member, and the cover member is integrally formed with a pressing portion that also functions as a reinforcing portion and is pressed and held by the wooden board of the top plate portion. In addition to the blindfold function, even if a load is applied to the plug receiving / holding member when the plug is inserted / removed, the pressing part that doubles as a reinforcement part can prevent the deformation of the plug receiving / holding member. The attachment strength of the plug receiving / holding member can be further increased by pressing it against.

[Brief description of drawings]

1A and 1B are a partially cutaway front view and a partially cutaway side view showing an embodiment of the present invention.

2 (a) and 2 (b) are a development view and a side view of the heating unit on the furnace box side of the same.

FIG. 3 is a cross-sectional view of the vicinity of the power supply unit of the above.

4 (a) and 4 (b) are a partially cutaway plan view and a partially broken side view of a top plate portion of the same table, and FIG. 4 (c) is a cross-sectional view illustrating a pressed state of a heat insulating material.

FIG. 5 is a partially cutaway plan view of the heating unit on the side of the table.

6A is an exploded sectional view taken along the line AA of FIG.
FIG. 6B is an exploded sectional view taken along the line BB of FIG.

FIG. 7 is a plan view of a heating unit on the side of the same table.

8 (a) to (c) are a partially cutaway plan view, a partially broken front view, and a side view of the same table.

FIG. 9 is an explanatory view of a mounting state of the heating unit on the table side in the above.

10 (a) and (b) are front views of the strip plate and FIG. 10 (c) and (d) are side views.

FIG. 11 is an explanatory view of a mounted state of the switch part holding member and the plug receiving and holding member of the above.

FIG. 12 is an explanatory view of a state where the cover member of the above is attached.

13A to 13C are a plan view, a front view, and a side view of a cover member.

FIG. 14A is a plan view of a switch section, FIG. 14B is a front view of an operation panel, and FIG. 14C is an explanatory view of a mounting state of a splint and a fixing piece.

FIG. 15 is a side view of the above switch unit.

[Explanation of symbols]

 2 Furnace box 3 Table 4 Heating section on furnace box side 5 Heating section on table side 7 Heater 27 Speck 28 Top plate section 31 Corner member 35 Switch section 36 Switch section holding member 50 Fixing piece 51 Plug receiving holding member 56 Insertion section 57 power plug receiver 58 terminal 60 cover member 65 pressing portion 90 aluminum sheet 91 heat insulating material 92 surface heat equalizing plate 100 operation panel

Claims (7)

[Claims] 1. A heating section is provided on substantially the entire bottom surface and inner side surface of the furnace box, and a heating section is provided on substantially the entire lower surface of the top plate of the table arranged above the furnace box. The moat kotatsu is characterized by setting the heating capacity of the heating part higher than that of the heating part on the table side. 2. The moat according to claim 1, wherein the heating unit on the table side is integrally laminated by laminating a surface soaking plate, a heater, an aluminum sheet, and a heat insulating material in this order from the lower surface to the upper surface. Kotatsu. 3. A corner member having a predetermined thickness is interposed between the outer peripheral portion of the heating portion on the side of the table and the lower surface of the top plate portion, and a protective portion for protecting the outer peripheral portion of the heating portion is integrally formed on the corner member. The moat kotatsu according to claim 1, wherein 4. The switch part of the heating unit on the table side is held on the top plate part via the switch part holding member, and the power plug receiver of the switch part is a member different from the switch part holding member. 2. The moat kotatsu according to claim 1, wherein the moat kotatsu is held on the top plate through the plug and the plug receiving and holding member is thicker than the switch holding member. 5. The moat kotatsu according to claim 4, wherein the switch part holding member and the plug receiving and holding member are foldably connected to each other. 6. An operation panel equipped with a power switch, an operation knob, etc. is attached to the front side of the switch section holding member, and a fixing piece fixed to the top board of the top plate section is provided on the rear side of the switch section holding member. The moat kotatsu according to claim 4, wherein the fixing piece can be fixed to the pier while a gap is provided between the fixing piece and the pier. 7. A penetration member through which a terminal of a power plug receiver is inserted is formed in a top board pier, and a cover member having a plug insertion hole is provided on a surface of the insertion member opposite to the power plug receiver. 5. The moat kotatsu according to claim 4, wherein the cover member doubles as a reinforcing portion and a pressing portion that is pressed and held by the crosspiece of the top plate portion is integrally formed.