JPH0522827B2 - - Google Patents

Description

[Detailed description of the invention] Industrial applications The present invention relates to a sunken kotatsu.

BACKGROUND OF THE INVENTION In recent years, a horigotatsu (horizontal kotatsu) has been proposed in which a support is erected within a dugout frame, a heating element unit is provided within the support, and a top plate holder is provided on the support, and has been attracting attention.

In other words, in this horigotatsu, compared to the conventional one in which the top plate support was supported by four legs set up on the periphery of the dugout frame, the top plate holder was supported by four legs set up on the periphery of the dugout frame as in the conventional case. Since there are no legs, the legs can move in and out from anywhere on the periphery, making it extremely convenient to use.

However, there were problems in the following points.

Problems to be Solved by the Invention Namely, in conventional sunken kotatsu, in which the heating element unit was a warm air type, the interior of the pit was dark and the visual heating effect was low.

In addition, in the case where the heating element unit was a heater type, temperature unevenness occurred within the excavation frame.

SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a high visual heating effect and to make it difficult for temperature unevenness to occur within the excavation frame.

Means for Solving the Problems In order to achieve the above object, the present invention consists of a heating element unit in a support column consisting of a reflector, a heater, and a fan arranged sequentially from the top to the bottom.
A downward louver is provided on the side surface of the support column in a portion facing the heating element unit.

Effect: According to the above means, the heat from the heater is reflected by the reflector and irradiated onto the feet via the louvers, so the feet are warm, bright and have a high visual heating effect.

In addition, warm air from the fan is blown onto the feet via the louver, keeping the feet warm, and since the warm air is utilized, temperature unevenness within the excavation frame is less likely to occur.

Embodiment In FIG. 1, reference numeral 1 denotes a bottomed digging frame made of wood, and the horizontal cross-sectional shape of this digging frame 1 is approximately square. As shown in FIGS. 2 and 3, the peripheral edge of this excavation frame 1 is fixed to the root 4 of the floor 3 using a metal fixture 2 with an L-shaped cross section and screws 2a. .

Note that the left and right clearance between the digging frame 1 and the neta 4 is set at 10 to 30 mm, making it easy to insert the digging frame 1.

Furthermore, wooden corner spacers 6 are provided at the corners of the upper end of the excavation frame 1, and wooden stile 5 are provided corresponding to each side of the upper end of the excavation frame 1 between the corner spacers 6. It is being
These stile 5 and corner spacer 6 are composed of a concave portion 5a of the stile 5 and a convex portion 6 of the corner spacer 6.
It is designed to be assembled by fitting the parts a.

A cover 7 made of synthetic resin is attached to the upper surface of each corner spacer 6, and the vertical wall surface 7a of this cover 7 is curved in the horizontal direction as shown in Fig. 3 to prevent discomfort when the foot enters and exits. The lower end of this is lowered to the bottom of the excavation frame 1, as shown in Figure 2.

On the other hand, on the center of the bottom surface of the excavation frame 1, a pillar 8 made of wood and having a prismatic shape is erected on the legs 9 of FIG. 1 as shown in FIGS. 4 and 5. Note that the leg 9 is formed by combining wooden pieces into a square shape, and its outer diameter is smaller than that of the support column 8.
In this state, the cutout opening edge 10a of the carpet 10 on the bottom surface of the digging frame 1 is in direct contact with the outer periphery of the leg 9, as shown in FIG.

Next, a heating element unit 11 shown in FIG. 1 is housed inside the support column 8 as shown in FIG.
Next, the structure of this heating element unit 11 will be explained.
The heating element unit 11 has an exterior body formed by horizontally disposing a top plate 13 and a bottom plate 14 on the upper and lower ends of four pillars 12 arranged in a square shape, and a heat shielding reflector 15 disposed slightly below the central part. ing. And top plate 13
An infrared heater 17 with a reflector 16 and a Shirotsuko fan 18 are provided between the heat shield reflector 15 and the heat shield reflector 15, and a motor 19 for driving the Shirotsuko fan 18 is provided between the heat shield reflector 15 and the bottom plate 14. There is.

In addition, an opening 8a is provided in each of the side surfaces of the support 8 that substantially corresponds between the top plate 13 and the heat shielding reflector 15, facing the heat generating unit 11, and a downward facing louver 20 made of flocked metal is provided here. It is fitted.

A rectangular wooden top plate holder 21 is fixed to the upper end of the pillar 8, and the top plate holder 21, the heating element unit 8, and the digging frame 1 are an example of a columnar first fixture. They are fixed together by a bolt 22 used as a bolt 22 and a nut 23 with a rotation stopper used as an example of a second fixture to be coupled with the bolt 22.

In other words, four holes 21a and 9a are provided in the top plate support 21 and legs 9, holes 21a in the lower end of each bolt 22 with a length of 60 cm, holes 24a in the wooden guide 24 at the upper part of the column 8, and holes 24a in each column 12. , the outside of the hole 9a, and the bottom of the excavation frame 1 one after another, thereby firmly fixing the three. In this state, the head 22a of the bolt 22 sinks into the recess 21b of the top plate holder 21 as shown in FIG. It is hermetically housed in a recess 25a formed in the reinforcing body 25. In other words, since the area below the excavation frame 1 is under the floor, the humidity is high, and if the joint between the metal bolt 22 and the metal nut 23 is left exposed here, it will oxidize and become difficult to disconnect.
This joint is hermetically housed in the recess 25a and shielded from moisture.

Further, by coupling the bolt 22 and nut 23, a wooden accessory case 26 is also integrated into the upper part of the support column 8.

In other words, there is a concave notch 8 in one opposing part of the upper part of the support column 8.
b, and an accessory case 26 having a concave cross section and an opening larger than the notch 8b is provided in the support 8, facing the notch 8b. This accessory case 2
The lower part of 6 is supported by the receiver 27, the left and right sides are held inside the guide 24, and the upper part is pressed downward by the top plate holder 21, thus making them integrated.

Next, the lower part of a rubber non-slip 28 is fitted into the four corner recesses (not shown) on the outer circumference of the top plate support 21, and the upper surface of this non-slip 28 is used as a kotatsu in winter as shown in Fig. 5. A wooden top plate 30 comes into direct contact with the lower surface of the button 29 except in winter.

As shown in FIG. 4, the outer diameter of the top plate 30 is larger than the outer diameter of the top plate holder 21, and the peripheral edge curves downward to form an edge 30a. The top plate holder 21 is located between this edge 30a, and the inner upper part (a) of the edge 30a hangs down, then slopes outward and widens (b), and then extends outward. (c), the dimension A of the edge 30a is 39 mm, and the dimension b is 22 mm.
mm, the B dimension of the top plate support 21 is 23.5 mm, and the protrusion dimension of the anti-slip 28 from the top plate support 21 is 5 mm. The reason why the slope b is provided on the inside of the edge 30a of the top plate 30 is to sufficiently press the kotatsu button 29 against the top plate holder 21 when the kotatsu button 29 is used as shown in FIG. Edge 3 of top plate 30
This is to prevent 0a from slipping down onto the top plate holder 21. In other words, without the slope b, the lower end of the edge 30a of the top plate 30 would be located above the top plate holder 21 due to the thickness of the falling button 29, and the top plate 30 would slide down.

In addition, 31 in FIG. 1 is a spacer when the top plate holder 21 is installed slightly above, and as can be seen from FIG.
2 is provided with a hole 31a through which the top plate holder 21 passes, and a protrusion 31b that projects into a recess (not shown) on the lower surface of the top plate support 21. In FIG. 8, two spacers 31 are provided, and the protrusion 31b of the lower spacer 31 is designed to protrude into a hole (not shown) in the upper spacer 31.

Again, 32 in FIG. 1 is a lead wire that supplies power to the infrared heater 17 and motor 19, and this lead wire 32 passes through the bottom of the excavation frame 1 and then proceeds outside the excavation frame 1 (not shown). passes through the floor 3 and is guided to a controller 34 on a wall 33 of the room.

The controller 34 controls the supply of electricity to the infrared heater 17, and has a power switch 35 and a pilot lamp 36 on its surface, and contains electronic parts for controlling the supply of electricity, such as a thyristor, for controlling the supply of electricity.

A thermostat (not shown) for detecting the temperature inside the excavation frame 1 and a variable resistance knob 37 for setting the temperature are attached to the column 8, and these thermostats, knobs 37, and controller 34 The electronic components for controlling current flow are the control components.

In the above configuration, when the kotatsu button 29 and the top plate 30 are set on the top plate holder 21 as shown in FIG. will be held.

Then, the infrared heater 17 becomes red hot, the infrared rays are reflected by the reflection plate 16, and then the infrared rays are illuminated obliquely from the gaps between the louvers 20 toward the feet. As a result, the feet are warm, and the heating effect is high visually as well.

When the motor 19 drives the Shirotsuko fan 18, the air inside the excavation frame 1 is sucked upward into the column 8 from the top of the louver 20 due to the inclination of the louver 20, and is converted into warm air by the infrared heater 17. After that, it is blown out from the center of the Shirotsuko fan 18 to the outer periphery, and then blown out from the gap at the bottom of the louver 20 and downward toward the feet due to the inclination of the louver 20.

In other words, the feet are effectively heated by infrared rays and warm air.

Effects of the Invention In the present invention, the heater heat and warm air are radiated onto the foot area through the louver, so the foot area is warm, bright, and has a high visual heating effect.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of a sunken kotatsu according to an embodiment of the present invention, Fig. 2 is a sectional view of the main part, Fig. 3 is a perspective view of the main part, and Fig. 4 is a partial cutaway of the main part. Front view,
Fig. 5 is a front cross-sectional view of the main part, Fig. 6 is a cross-sectional view of the main part, Fig. 7 is a perspective view of the main part, Fig. 8 is a partially cutaway front view of the main part, and Fig. 9 is a main part. FIG. 7 is a front sectional view of another embodiment of the invention. DESCRIPTION OF SYMBOLS 1... Excavation frame, 8... Support, 11... Heat generating unit, 16... Reflector, 17... Infrared heater,
18... Sirotskovan, 20... Luba, 21
...Top plate support.

Claims (1)

[Claims] 1. A moat frame, a post erected within the moat frame, a top plate holder provided at the upper end of the support, and a heating element unit provided within the support, the heating element unit being installed downward from above. The horigotatsu is constructed by sequentially providing a reflector, a heater, and a fan, and is provided with a downward louver on the side surface of the support that faces the heat generating unit.