JPH0113921Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] This invention relates to the improvement of the Hori Kotatsu.

[Conventional technology]

As shown in Fig. 3, the structure of the hori kotatsu, which has been widely adopted in the past, is that a rectangular cutout is provided at an appropriate location on the tatami mat or floor A, and a hearth box B is placed in the space formed in this cutout. There is one in which the upper opening edge of the furnace box B is attached to the periphery of the cut out part, and a tower C is installed above the opening of the furnace box B, and a heater is arranged at the inner bottom of the furnace box B. It is used.

On the other hand, a hori kotatsu in which a hollow seat extending toward the outer periphery is provided at the upper end opening of the hearth box of the hori kotatsu to supply warm air into the seat is also disclosed in, for example, Japanese Utility Model Application Publication No. 58-110749. has been disclosed.

[The problem that the idea attempts to solve]

However, according to the former Hori Kotatsu, which is generally widely adopted, the person warms himself by putting his feet inside the hearth box B while sitting on the tatami or floor A around the open end of the hearth box B. , the problem is that even the buttocks of the seated person are not warmed, and therefore the lower back and the entire body are not warmed.

This difficulty can be temporarily solved by providing a hollow seat that allows warm air to flow in, as in the latter type of hori kotatsu, but the hollow seat is placed horizontally on the outer periphery of the upper end of the hearth box. Since it has an extended structure, the warm air intake opening of the hollow seat opens only at right angles to the upper end of the furnace box, allowing warm air from the heater installed at the inner bottom of the furnace box to flow through. It was not possible to sufficiently flow the warm air into the hollow seat through the opening, and therefore it was necessary to install a fan in the opening to forcibly send warm air into the hollow seat.

Furthermore, due to the existence of the space, the seat surface of the hollow seat receives a large load and tends to deform downward when seated, so it requires some kind of support member. There was a problem in that the provision of such members obstructed the flow of warm air, making it impossible to effectively warm the room.

The purpose of the present invention is to provide a hori kotatsu that solves these problems.

[Means to solve the problem]

In order to achieve the above object, the Horikotatsu of the present invention has an inverted truncated pyramid-shaped slope that is inclined outward toward the upper end at the upper opening edge of the heater box 11, as shown in the drawings corresponding to the embodiments. The lower end of the frame 8 is integrally provided to form the furnace box 1, and a horizontal seat plate part 1 is provided facing outward at the upper end of the vertical square frame plate part 10b.
Seat frame plate 10 with an inverted L-shaped cross section by integrally connecting 0a
, and the square frame plate portion 10 of this seat frame plate 10
b and the outer end of the horizontal seat plate part 10a are fixed to the lower end and the upper end of the inclined frame 8 of the furnace box 1, respectively, so that the space inside the furnace box 1 is divided into the central space 4 and the inclined frame 8. The square frame plate part 10b and the horizontal seat plate part 10a of the seat frame plate 10 are further provided with a large number of ventilation holes over the entire surface thereof. It is characterized by having holes 13 and 14.

[Effect]

The warm air inside the furnace box 1 heated by the heater 6 disposed inside the heater box 11 rises inside the furnace box 1 and diffuses and flows, and flows through the squares of the seat frame plate 10 that is completely opened inside the furnace box 1. The air flows into the outer circumferential space 3 through a large number of ventilation holes 13 formed in the frame plate 10b, filling the space 3, and the seat frame 10
The air flows out from the ventilation holes 14 formed in the horizontal seat plate 10a, and warms the buttocks of the body seated on the horizontal seat plate 10a.

On the other hand, the warm air rising in the central space 4 of the furnace box 1 is prevented from flowing outside by the futon placed on the tower installed on the horizontal seat plate 10a, and the warm air is also From the ventilation hole 14 of the horizontal seat plate portion 10a, which is a surface, to the outer peripheral space portion 3
The convection of warm air is generated within the space 3 and effectively warms the seating surface through the ventilation holes 14.

In addition, the load applied when sitting on the horizontal seat plate portion 10a of the seat frame plate 10 is firmly supported by the vertical rectangular frame plate portion 10b which also allows for circulation of warm air, allowing for stable seating.

〔Example〕

The embodiments of the present invention will be explained with reference to the drawings: 1
1 is a furnace box, which is provided with a bottomed heater box 11 containing a heater 6 in its lower part, and has an inverted truncated pyramid-shaped inclined frame 8 on the upper opening edge of the heater box 11, which is inclined outward toward the upper end. A flange 8a is provided on the upper end of the inclined frame 8 to project outwardly and horizontally, and the flange 8a is formed on the end surface of a rectangular cutout provided on the floor plate 9. The furnace box 1 is housed in the cutout space in a supported state.

Reference numeral 10 denotes a seat frame plate having an inverted L-shaped cross section, which is formed by integrally connecting a horizontal seat plate portion 10a facing outward to the upper edge of a vertical square frame plate portion 10b;
The lower end of the furnace box 1 is fixed to a horizontal step 8b formed at the connection between the lower end of the inclined frame 8 of the furnace box 1 and the opening end of the heater box 11, and is fixed to the horizontal step 8b. A recess 10c having a substantially U-shaped cross section is formed on the outer periphery of 10a, and a stile 12 is fitted into this recess 10c and supported on the flange 8a.

Reference numeral 3 denotes an outer circumferential space having a triangular cross section surrounded by the seat frame plate 10 and the inclined frame 8 of the furnace box 1;
This space 3 is divided from the central space 4 of the furnace box 1 by a square frame plate 10b.

Further, the square frame plate portion 10 facing the central space portion 3
b and the horizontal seat plate portion 10 forming the seating surface 2.
A large number of ventilation holes 13 and 14 are formed over the entire surface of the seat frame board 10, and a recess 15 into which the lower ends of the legs of the tower 5 fit into the four corners of the horizontal seat plate portion 10a of the seat frame board 10. In addition, a grating 7 is provided on the opening edge of the heater box 11.

In the figure, reference numeral 16 denotes a quilt 1 that is hung on the tower 5 and covers the seating surface 2 with its outer periphery.
7. Tatami laid on the outside floorboard of stile 12, 1
8 is the joist, 19 is the daihiki, and 20 is the bundle.

With this configuration, when the heater 6 generates heat during use, the air inside the furnace box 1 becomes warm air, which rises inside the furnace box 1 and also flows in the diffusion direction to fill the central space of the furnace box 1. The outer circumferential space 3 is filled through a large number of ventilation holes 13 formed in the square frame plate part 10b that is completely open to the part 3, and the large number of ventilation holes 1 in the horizontal seat plate part 10a flows into the outer circumferential space 3.
4 and warms the buttocks of the body seated on the seating surface 2.

Furthermore, the warm air that has risen through the central space 4 of the furnace box 1 is prevented from flowing outside by the futon placed on the tower installed on the horizontal seat plate 10a. It is reversed within the tower 5 and flows back into the outer peripheral space 3 from the ventilation hole 14 of the horizontal seat plate portion 10a of the seating surface 2, and a convection of warm air is generated within the space 3 and is effective through the ventilation hole 4. This warms the seating surface.

This convection phenomenon occurs when the outer peripheral space 3 becomes the center space 4.
Since it is formed in a triangular cross-sectional shape that expands upward from the lower end side, the rise of high temperature warm air flowing in from the lower side of the central space 4 through the ventilation hole 13 flows while being diffused, while the upper part As described above, the seat surface 2 side can be effectively heated by the rising warm air, which is generated by the lower temperature of the warm air flowing in through the ventilation holes and the warm air which is higher in temperature.

[Effect of idea]

As described above, according to the Hori Kotatsu of the present invention, the lower end of the inclined frame 8 in the shape of an inverted truncated pyramid, which is inclined outward toward the upper end, is integrally provided on the upper opening edge of the heater box 11, and the furnace box 1 A seat frame plate 1 having an inverted L-shaped cross section is formed by integrally connecting a horizontal seat plate portion 10a facing outward to the upper end of a vertical square frame plate portion 10b.
0, and the square frame plate portion 1 of this seat frame plate 10
The lower end of the furnace box 1 and the outer end of the horizontal seat plate 10a are fixed to the lower end and the upper end of the inclined frame 8 of the furnace box 1, respectively, so that the space inside the furnace box 1 is divided into the central space 4 and the inclined frame 8. The square frame plate part 10b and the horizontal seat plate part 10a of the seat frame plate 10 are further provided with a large number of ventilation holes over the entire surface thereof. Since holes 13 and 14 are drilled,
Since the rectangular frame plate portion 10b of the seat frame plate 10 completely faces the central space 3 of the furnace box 1 from the lower end to the upper end, a large number of holes are formed on the entire surface of the rectangular frame plate portion 10b. The warm air in the central space 3 heated by the heater in the heater box 11 can smoothly flow into the outer circumferential space 3 through the ventilation holes 13, and the space 3 is filled with warm air and the horizontal seat The water naturally flows out from the ventilation holes 14 formed in the plate part 10a, and can effectively warm the buttocks of the body seated on the horizontal seat plate part 10a.

Furthermore, the warm air rising in the central space 4 of the furnace box 1 was prevented from flowing outside by the futon placed on the tower installed on the horizontal seat plate 10a, and the temperature was lowered. Warm air flows into the outer circumferential space 3 having a triangular cross section from the ventilation hole 14 of the horizontal seat plate portion 10a, which is the seating surface, and the high temperature warm air flows from the lower side of the central space 4 through the ventilation hole 13. In addition, convection is generated to further ensure the natural inflow of warm air into the outer peripheral space 3, and a suitable amount of warm air can always flow out to the seating surface side to reliably warm the seating area. It is.

Further, the load of the body applied when sitting on the horizontal seat plate part 10a of the seat frame plate 10 can be firmly supported by the vertical square frame plate part 10b which also has the circulation of warm air. This allows for stable seating without the need for arranging an appropriate support member inside the seat.

[Brief explanation of drawings]

Fig. 1 is a vertical sectional view showing an embodiment of the present invention;
The figure is a schematic cross-sectional view thereof, and FIG. 3 is a schematic cross-sectional view of a conventional Hori Kotatsu. DESCRIPTION OF SYMBOLS 1... Furnace box, 3... Outer space part, 4... Central space part, 8... Inclined frame, 10... Seat frame plate, 10a...
...Horizontal seat plate part, 10b... Square frame plate part, 11...
Heater box, 13, 14...Vent holes.

Claims (1)

[Scope of utility model registration request] The lower end of the inclined frame 8 in the shape of an inverted truncated pyramid, which is inclined outward toward the upper end, is integrally provided with the upper opening edge of the heater box 11 to form the furnace box 1. Horizontal seat plate portions 10a are integrally connected outwardly to form a seat frame plate 10 having an inverted L-shaped cross section, and the lower end of the square frame plate portion 10b of this seat frame plate 10 and the horizontal seat plate portion 10a are fixed to the lower and upper ends of the inclined frame 8 of the furnace box 1, respectively, so that the space inside the furnace box 1 is surrounded by the central space 4, the inclined frame 8, and the seat frame plate 10. The space is divided into an outer circumferential space 3 having a triangular cross section, and a large number of ventilation holes 13 and 14 are further provided throughout the square frame plate part 10b and the horizontal seat plate part 10a of the seat frame plate 10. Naru Hori Kotatsu.