JPH03129249A - Domestic foot warmer - Google Patents

Abstract

PURPOSE:To spread hot air uniformly by forming an upper surface frame in a hollow shape, providing a heat source and a suction port substantially at the center of the frame, and providing a sound air diffuser in the vicinity of its peripheral edge. CONSTITUTION:An upper surface frame 1 is formed in a hollow shape, a heat source 14 and a suction port 7 are provided substantially at the center of the lower surface of the frame 1, and hot air W diffusers 8,..., are provided in the vicinity of its peripheral edge. A fan 13 is rotatably driven by a motor 12 at the time of room heating, the air is sucked from the port 7, the sucked air is heated by the source 14 to become hot air W, which is passed between the upper and lower surfaces of the frame 1, and diffused from the diffusers 8. In this case, if louvers 9,..., are regulated, a wind direction can be altered. The louvers 9,..., are suitably opened or closed to regulate the air flow, thereby feeding the hot air W to only necessary side. Thus, the air W is supplied uniformly to the entire foot warmer to eliminate a local hot area.

Description

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

(Problems to be solved by the conventional technology and invention) Some conventional home kotatsu were equipped with a device that blows out hot air, but in this case, air was pumped from the center of the bottom of the top frame. While inhaling, warm air was blown out from the center.Therefore, there was a drawback that only the center became locally hot.
When your hands are cold, there is a problem in that you have to insert your hands deep into the device to warm them up.

Therefore, an object of the present invention is to solve such problems.

[Means to solve the problem]

In the first invention, the upper frame is hollow, and a heat source and a suction port are provided approximately at the center of the lower surface of the upper frame, and a hot air outlet is provided near the periphery.

A second aspect of the invention is that the air outlet can be freely adjusted to open and close.

A third aspect of the invention is that the above-mentioned air outlet is provided in the leg portion.

[For production]

Air is sucked in through the inlet, heated by a heat source, and then blown out as warm air from the outlet. At this time, since the air outlet is provided near the periphery, the hot air is distributed uniformly.
By opening and closing the hot air outlet as appropriate, hot air can be sent only to where it is needed. In claim 3, the corners are particularly warmed.

〔Example〕

The present invention will be described below based on illustrated embodiments.

In FIGS. 1 and 2, reference numeral 1 denotes an upper frame including an upper frame main body 2 and a back cover 3 forming a lower surface, and on the upper side of the upper frame 1 there is a decorative plate, etc. (not shown). It will be placed. The upper frame main body 2 has a substantially square or rectangular planar shape, and is composed of a flat upper surface 5 with a peripheral edge 4 connected therearound, and legs 6 provided at the corners. It is integrally molded from plastic, etc. The back cover 3 has approximately the same planar shape as the upper frame main body 2 except for the legs 6, and is attached to the peripheral edge 4 from below in the form of a cover. Further, a suction port 7 is provided approximately at the center of the back cover 3, and elongated air outlets 8 are provided at four locations near the periphery in parallel with each side. The air outlet 8 is provided with a thin plate-like looper 9 that rotates automatically or manually, so that the air outlet 8 can be freely adjusted to open and close. Further, a protective shell 10 is attached to the suction port 7, and a temperature sensor 11 is attached near it. A fan 1 rotatably driven by a motor 12 is provided below the upper surface 5 of the upper frame main body 2 and above the suction port 7.
3 is provided to allow air to be sucked. Further, a heat source 14 is installed on the back cover 3 on the outer diameter side of the fan 13. Although the motor 12 and fan 13 are provided on the back cover 3, they may also be provided on the top frame body 2.

In addition, the upper surface 5 itself can be used as a decorative board for the home kotatsu, and the hanging or futon can be attached with a square opening in the center and removably attached along the peripheral edge 4 in the form of a skirt. , You can freely omit the futon for hanging, but it is not shown.

However, as shown in FIG. 2, during heating, the motor 12
The fan 13 is driven to rotate, and air is sucked in from the suction port 7 accordingly. The injected air is heated by the heat source 14, becomes hot air W, passes between the upper and lower surfaces of the upper frame l, and is blown out from the air outlets 8.

At this time, by adjusting the looper 9..., the wind direction can be changed, and by opening and closing the looper 9... as appropriate, each air volume can be adjusted and the hot air W can be sent only to the necessary sides. . Further, the motor 12 and the heat rA 14 are controlled by the sensor 11, so that the inside of the upper frame 1 can be maintained at an appropriate temperature.

FIG. 3 and FIG. 4 are different embodiments, and the upper frame l includes a radial or lattice-shaped crosspiece 15 and an outer peripheral frame 16, and in the example of FIG. 3, the crosspiece I5 A large number of air outlets 8 are provided on the lower surface near the peripheral edge of the outer peripheral frame 1 in the example shown in FIG.
A large number of blowouts were provided on the bottom surface of 6. The rest of the structure is the same as the embodiment shown in FIGS. 1 and 2.

FIG. 5 shows yet another embodiment, in which, in addition to the configuration of the embodiments shown in FIGS. 1 and 2, the legs 6 are also provided with air outlets 8. In order to blow out hot air W from the outlets 8, the legs 6 are formed hollow so as to communicate between the upper and lower surfaces of the upper frame 1.

Note that the present invention is not limited to the above-described embodiments, and design changes may be made without departing from the gist of the present invention. For example, the legs 6 may be formed separately from the upper frame 1 and joined together. In addition, in the embodiments shown in Figures 1 and 2, there was no blowout...
It is also possible not to provide the looper 9 on the legs 6, and in the embodiment shown in FIG. 5, it is also preferable to provide the air outlet 8 only on the legs 6.

Yes.

(Effects of the Invention) Since the present invention is configured as described above, it produces the remarkable effects described below.

(2) Since the hot air W is blown out from near the peripheral edge of the lower surface of the upper frame 1, the hot air W is evenly distributed throughout the entire interior of the kotatsu, and there is no possibility that it will be hot locally.

(2) In claim 2, since the blower ports 8 can be adjusted to open and close, the wind direction can be changed and the hot air W can be sent only to where it is needed.

(2) According to claim 3, it is possible to uniformly warm the entire area including the corners, which were difficult to warm up in the past.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention, Fig. 2 is a cross-sectional front view that also serves to explain the operation, Figs. 3 and 4 are bottom views showing different embodiments, and Fig. 5 FIG. 7 is a cross-sectional view of a main part showing still another embodiment. l...Top frame, 6...Legs, 7...Suction port, 8...Blowout port, 14
...Heat source, W...Warm air.

Claims (1)

[Scope of Claims] 1. The upper frame 1 is hollow, and a heat source 14 and an inlet 7 are provided approximately in the center of the lower surface of the upper frame 1, and hot air W outlets 8 are provided near the periphery. A home kotatsu with a unique feature. 2. The upper frame 1 is hollow, and the heat source 14 and the suction port 7 are provided approximately at the center of the lower surface of the upper frame 1, and the hot air W outlet 8, which can be opened and closed, is provided near the periphery. A home kotatsu featuring 3. The upper frame 1 is hollow, and the heat source 14 and the suction port 7 are provided approximately at the center of the lower surface of the upper frame 1, and the legs 6...
This home kotatsu is characterized by having 8 warm air outlets.