JPS6243205Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a tower kotatsu having a top plate and a plurality of legs hanging from the corners of the top plate.

Conventionally, this type of tower kotatsu has been designed to radiate heat from a heating element attached to the center of the back of the top plate between a pair of adjacent legs. For this reason, for example, in the case of a yagura kotatsu with a square top and four legs, if four people use the kotatsu at the same time, the heat from the heating element can be used effectively.
If there were fewer than four users, some of the heat from the heating elements could not be used, wasting the heat and working against energy savings.

The present invention was made with the aim of eliminating the drawbacks of the conventional ones mentioned above and providing a yagura kotatsu that does not consume unnecessary energy.It radiates heat between a pair of adjacent legs. It is provided with a plurality of heating elements and a plurality of switches attached near each heating element to individually control on/off of each heating element.

The present invention will be explained below with reference to embodiments shown in the drawings.

1 and 2 show an embodiment of the present invention, in which four legs 2, 2, . . . are hung from the four corners of a square top plate 1. On the back side of the top plate 1, four heating elements 3, 3... made of infrared light bulbs etc. are attached so as to be parallel to each side of the top plate 1.The back of each heating element 3 has a curved surface. A reflector plate 4 is attached so that the heat from the heating element 3 is radiated to a temperature guaranteed point P shown in FIG. As stipulated in JISC9209 for "electric kotatsu," for electric kotatsu type 6, the temperature guarantee point is the point on the floor that bisects the line connecting the inside of two adjacent legs. It is a point 150mm above the surface. In order to direct the heat from the heating element 3 to this temperature guarantee point P, the reflecting plate 4
It is a curved surface such as a paraboloid whose y-axis is a straight line passing through the longitudinal intermediate position of and the temperature guarantee point P. By directing the heat from the heating element 3 toward the temperature guarantee point in this way, the knees of the person who puts his or her feet inside the kotatsu will be warmed.

Four switches 5 are installed near each heating element 3 to individually control on/off of each heating element 3, and these switches 5 can be easily operated by putting your hand inside the kotatsu. There is.

Note that each heating element 3 is covered with a protective net 6 for safety.
covered by.

According to the above-mentioned configuration, when a person with their feet inside the kotatsu operates the switch 5 at hand to turn it on, heat is radiated from the heating element 3 facing the person with their feet inside the kotatsu. and this person can keep warm. Therefore, sufficient warmth can be obtained by turning on only the heating element 3 corresponding to the person who has put his or her feet inside the kotatsu, so that unnecessary heating elements 3 can be turned off and electricity can be saved. Note that it is more convenient to separately provide a master switch that turns on and off all the heating elements 3 at the same time.

An example of a hot-air type tower kotatsu that radiates heat to the above-mentioned temperature guarantee point P is shown in FIG.

In FIG. 3, there is a heater unit 7 in the center of the back surface of the top plate 1 supported by four legs 2, 2...
is installed. The casing 8 of the heater unit 7 has an air inlet 9 that opens directly below the central portion, and four air outlets 10, 10, which are opened in an inclined manner on the outside of the air inlet 9. are doing. A heater 11 and a fan 12 are disposed within the casing 8, and the air sucked in from the air suction port 9 is blown out from each air outlet 10 as warm air. The hot air blowing direction from the air blowing outlet 10 is directed toward the temperature guarantee point P. Therefore, the rise performance until the temperature guarantee point P reaches about 40°C is about
It can be shortened from 10 minutes to about 5 minutes.

As explained above, the Yagura Kotatsu according to the present invention has a plurality of heating elements that radiate heat between a pair of adjacent legs, and is installed near each heating element, and each heating element is turned on and off individually. It has multiple switches to control the kotatsu, so you can keep warm by turning on only the heating element corresponding to the person who puts their feet inside the kotatsu, which is an excellent feature that does not waste energy. be effective.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an embodiment of the Yagura Kotatsu according to the present invention, Fig. 2 is a bottom view of Fig. 1, and Fig. 3 is a side view of a warm air type Yagura Kotatsu that radiates warm air to the temperature guaranteed point. It is. 1...Top plate, 2...Legs, 3...Heating element, 4...
Reflector, 5... Switch, 6... Protective net, 7...
Heater unit, 8...Casing, 9...Air inlet, 10...Air outlet, 11...Heater,
12...Heater, P...Temperature guarantee point.

Claims (1)

[Scope of utility model registration request] A top plate, a plurality of legs perpendicular to the corners of the top plate, and a plurality of legs for radiating heat arranged between a pair of adjacent legs and along corresponding sides of the top plate. What is claimed is: 1. A tower kotatsu comprising: a heating element; and a plurality of switches attached near each heating element to individually control on/off of the corresponding heating element.