JPH02115623A - Dug fireplace with coverlet - Google Patents

Abstract

PURPOSE:To employ only one power cord and one operation unit even if a heater unit is increased and to eliminate the disturbance of walking by electrically connecting a plurality of heater units. CONSTITUTION:A plurality of heater units 3 are attached to the bottom of a fireplace body 1, and electrically connected by connection units 4. Thus, the units 3 are electrically connected by the units 4 to employ only one power cord 6 and one operation unit 5 in the body 1 having the plurality of the units 3. As a result, even if the body 1 is increased in size and the units 3 are increased in number, its operation can be conducted at one position, the power source may be one, and the disturbance of walking is eliminated.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a sunken kotatsu.

(Prior Art) Conventionally, this type of kotatsu has had a configuration as shown in FIG. 6, for example.

In other words, depending on the size of the kotatsu body 10, the heater unit
By adjusting the number and position of the kotatsu 11 installed, sufficient warmth can be maintained even if the size of the kotatsu main body 10 changes.

(Problem B to be Solved by the Invention) However, with such a configuration, there is a problem in that each heater unit 11 must be powered and operated separately. Furthermore, the number of power cords 12 and operation parts 13 corresponding to the number of installed heater units 11 were pulled out from the horigotatsu, which also became a hindrance to walking.

Therefore, the first object of the present invention is to eliminate the hindrance to walking by requiring only one power supply section and one operation section even if there are a plurality of heater units.

A second purpose is to obtain a structure in which the installation position of the heater unit can be arbitrarily selected even if the power supply section and the operation section are located at one location.

(Means for Solving the Problems) In order to achieve the first object, the present invention electrically connects a plurality of heater units through a connecting portion.

Furthermore, in order to achieve the second object, the present invention makes the connecting portion expandable and contractible.

(Function) The horigotatsu of the present invention has the above-described configuration, so that even if there are a plurality of heater units, each heater unit can be electrically connected by the connection part, so that the power cord can be connected to the power cord from each heater unit as in the conventional case. There is no need to pull out the operation unit, and the power cord and operation unit can be configured in one.

In addition, by making the connection part expandable, it is possible to
You can choose the installation position of the heater unit as you like.

(Example) Hereinafter, an example of the present invention will be described based on the accompanying drawings.

In Fig. 1, 1 is a box-shaped kotatsu body that is embedded in the floor 2, and a heater unit 3 is attached to the bottom of the kotatsu body 1.
Two heater units 3 are attached, and these two heater units 3 are electrically connected by a connecting portion 4 in the basic circuit shown in FIG. Reference numeral 5 represents an operation unit for controlling the two heater units 3, and reference numeral 6 represents a power cord.

In addition, in Fig. 1, two heater units 3 are electrically connected, but in order to accommodate a larger kotatsu main body 1,
It is better to increase the number of heater units 3 as shown in FIG.

Next, the operation of this embodiment will be explained.

The heater unit 3 is connected to multiple units according to the size of the kotatsu body 1 (therefore, there are multiple heat sources, which can be used to heat a wide range and maintain sufficient warmth.Furthermore, each heater unit 3 is equipped with a temperature regulator 7 and a temperature overheat prevention device. The safety is extremely high as the heater 8 is attached, and even when changing the capacity, the temperature inside the kotatsu main body does not rise due to the diode 9, and uniform heating can be achieved.

By electrically connecting the plurality of heater units 3 through the connection part 4, the power cord 6 and the operation part 5 become one even in the kotatsu main body 1 where a plurality of heater units 3 are installed.

As a result, even if the kotatsu main body l becomes larger and the number of heater units 3 increases, the operation can be performed from one place, the power source only needs to be from one place, and it does not get in the way of walking.

Next, other embodiments will be described.

In the embodiment shown in Fig. 4, the connection part 4 of the heater unit 3 is made of a movable cord that is extendable and retractable, and the heater unit 3 is arbitrarily installed at an optimal position according to the shape of the kotatsu main body l as shown in Fig. 5. This makes it possible to improve heating efficiency.

(Effects of the Invention) As is clear from the description of the embodiments above, the present invention allows a plurality of heater units to be electrically connected, so that even if the number of heater units increases, only one power cord and one operation unit are required. , it can also eliminate obstacles to walking.

Furthermore, in the present invention, since the connecting portions of the plurality of heater units are made expandable and retractable, the installation of the plurality of heater units can be arbitrarily selected, and the heating efficiency can be optimized in accordance with the shape of the kotatsu main body.

[Brief explanation of the drawing]

1 and 2 are perspective views of a horigotatsu according to an embodiment of the present invention, FIG. 3 is a basic circuit diagram of the horigotatsu, and FIG. 4 is a heater unit of the horigotatsu showing another embodiment. FIG. 5(a) is an enlarged front view of the connecting portion of the . (b) and (C) are plan views showing examples of use of the heater unit, and FIG. 6 is a perspective view of a conventional horigotatsu. l...Kotatsu main body, 3...Heater unit, 4...Connection section, 5...Operation section,
6...Power cord. Name of agent: Patent attorney Shigetaka Awano and one other person

Claims (2)

[Claims] (1) A plurality of heater units installed on the bottom of the box-shaped kotatsu main body with an upper opening, a circuit for controlling the plurality of heater units, and a circuit derived from one of the plurality of heater units. The sunken kotatsu is provided with a power cord provided with a power supply cord, and an operation part for operating the circuit, and the plurality of heater units are electrically connected by a connection part. (2) The horigotatsu according to claim (1), wherein the connecting portion is expandable and retractable.