JPS62223527A - Foot warmer for chair sitter - Google Patents

Abstract

PURPOSE:To use a foot warmer in a wooden frame, which is installed under a floor, as the foot warmer in a wooden frame for a chair sitter by a method wherein the structure of the foot warmer, installed under the floor, is moved to a position on the floor so as to be capable of using it in the structure of two stages or more. CONSTITUTION:Rectangular supporting pillars 2, 2, 2, 2 are established under the lower surface of the four corners of a square top plate 1 and plywoods 3, 3, 3, 3, in which fabric 18 is bonded on the inner surface thereof from the lower end of the frame to a height near the sitting surface of a chair, are attached. A quilt 4 is placed on the frame so that the lower end of the quilt comes to a position lower than the upper end of the plywoods 3, 3, 3, 3 while a heat generating body 6 is attached to the lower surface of the top plate 1 at the center thereof. When heating foot, the chair 17 is approached to sit on it and feet are entered into the foot warmer. The supporting pillars 2, 2, 2, 2 are separated from the plywoods 3, 3, 3, 3 at a position slightly lower than the upper end of the plywoods to form a frame 7 on the upper part and a foot rest 9 in the lower part of the foot warmer. According to this constitution, the foot warmer may be used both for the foot warmer in a wooden frame and the foot warmer for a chair sitter.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to the structure and method of using a kotatsu used for home heating.

(b) Conventional technology There are two traditional types of kotatsu: the yagura kotatsu and the hori kotatsu.

a) Yagura Kotatsu The structure of the Yagura Kotatsu is shown in Figure 5, a sectional view of the Yagura Kotatsu and a diagram of the state in which it is used.

A square top plate (1) and supports (2) at its four corners (2
)(2) Construct tower (7) by erecting (2). Place this on the floor (5) and cover it with the futon (4).

The futon (4) is sized so that its hem reaches the floor (5) and further covers the floor. In the case of an electric heater, the heating element (6) is the top plate (1
), and in the case of charcoal etc., it is placed on the internal floor (5).

The state of use when sitting straight is shown in FIG. 5 with chain lines.

b) Horikotatsu The structure is shown in Figure 7, a sectional view of the Horikotatsu and a diagram of its usage.

Part of the tatami mat (11) and floorboard (12) are removed and the cross beam (13) is installed.
Make a box shape with the vertical insulation structural board (14) (10 (14) (14) and the temporary bottom insulation structure (15) and suspend it.
), insert the wooden frame (16) (16) (16) (16), set the tower (7) on top of it, and cover it with the futon (4). The heating element (6) is placed in the center of the bottom insulation structure board.

The state during use is shown by the chain line in FIG. Put your lower legs inside and sit on the tatami.

(c) Problems that the invention attempts to solve There are the following disadvantages when warming yourself with a yagura kotatsu.

My back gets cold because I sit on the floor, which is the coldest in the room, my knees hurt from sitting straight for a long time, women are not allowed to sit cross-legged by custom, and when I put my lower legs in, in some cases, their feet touch each other. I'm at a loss.

Hori kotatsu also has the following drawbacks.

The structure under the floor is large, making it difficult to install on floors above the second floor, the installation location is fixed and cannot be moved, and the installation cost is high.
My back is cold because I sit on the tatami mat, which is the lowest temperature in the room.

The invention aims to eliminate the above-mentioned drawbacks.

(d) Means to solve the problem Instead of sitting or sitting on the floor, I decided to sit on a chair, and all structures that were under the floor were moved to the floor.
The structure is such that it is movable and can be installed on the second floor or higher.

To explain this using a drawing, there are pillars (2) (2) (2) at the four corners of the bottom of the rectangular top plate (1) up to the floor (5).
(2) and place a chair ([7) between them from the floor (5).
Thermal insulation (3) (3)
(3) Enclose with (3) and cover with a futon (4) from the top of the top plate (1) to a position lower than the top of (3) (3) (3) (3), which generates heat inside. This is a kotatsu for a chair, in which a body (6) is installed, and when warming the body, a chair (17) is brought closer to the kotatsu than the others, and the person sits on it and puts his or her lower legs inside.

(E) Function The kotatsu for chairs is constructed by surrounding the lower part of the support up to the height of the seat surface of the chair (17) with a shielding and insulating material, and covering the lower end of the support with a futon (4). Therefore, there is less heat dissipation from the heated interior, and since the lower edge of the futon (4) is located lower than the upper edge of the shielding insulator (3) (3) (3) U), the heated interior Since the specific gravity of the air inside the kotatsu is lighter than the air outside, there is almost no circulation of air between the inside and outside even if there is a gap between them, and the thermal efficiency is almost the same as that of a hori kotatsu.

Also, when warming yourself, you sit on a chair, so you don't have to worry about sitting on a yagura kotatsu, and because the sitting position is higher than the floor, the cold on your back is less intense than when you sit on a yagura kotatsu or hori kotatsu.

(c) Example of implementation Embodiments of the invention will be described with reference to the drawings.

(First Embodiment) FIG. 1 is a sectional view and usage state diagram showing a first embodiment of the present invention, and FIG. 2 is a bottom view of the main body.

Square supports (2) (
2) (2) Stand up (2) and attach wooden plywood (3) (3) with cloth (18) stretched on the inside from the bottom edge to the height near the seat surface of the chair. , upper reinforcing material (19) (19) (19) (19
), attach the lower reinforcement members (20) (20) (20) (20). The top and bottom edges of these are made of wooden plywood (3) (3
) (3) Place the futon (4) to a position lower than the top edge of (3).
Cover with

The heating element (6) is of electric heating type and is installed at the center of the bottom surface of the top plate (1).

When taking warmth, place a chair (17) closer to the pond, sit on it and put your lower legs inside.

(Second Embodiment) FIG. 3 is a cross-sectional view of a tower and a pedestal and a partial cross-sectional view of a column joint according to a second example of the present invention.

As shown in the partial sectional view, the second embodiment replaces the pillar (2) (2) (2) (2) of the first embodiment with a wooden plywood (3) (
3) (3) Separate at the lower part of the upper end of (3), and have a structure that will not shift horizontally when they are combined vertically, with the upper part as a tower (7) and the lower part as a pedestal (9),
The futon (4) is combined to form a kotatsu for a chair.

The second embodiment has the feature that it can be used for both a tower kotatsu and a chair kotatsu.

(Third Embodiment) FIG. 4 is a sectional view of a third embodiment of the present invention and a partial sectional view of a column contact portion. The chain line indicates the existing Yagura Kotatsu (1
0).

The pedestal (9) is located at the top of the pillar (11) (8) (8) (8) at the pillar (2) of the existing Yagura Kotatsu (10).
(2) (2) Manufactured to match the position of the lower end of (2). Also in the third embodiment, as shown in the partial cross-sectional view, the pillar (2) (2) (2) (2) and the pillar (Ill)
(8) (8) The contact part of (8) shall be structured so that it does not shift horizontally.

The third embodiment has the feature that it can be used as a chair kotatsu by providing a pedestal to the existing tower kotatsu.

(G) Effects of the Invention According to the present invention, when warming the body, one sits on a chair, so there is less physical difficulty even when using the chair for a long time, and the place where the upper body is placed is raised from the floor to the top of the chair. Now that I'm in that position, the ambient temperature is higher, and the cold on my back has decreased.

In terms of equipment, there is no structure under the floor, and everything is installed on the floor, so it can be installed on the second floor or higher, there are no restrictions on the type of chair you can sit on, and the equipment costs are low. It is characterized by the ability to live a modern life by sitting on a chair and warming yourself.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a kotatsu for a chair and a diagram of its usage state. Figure 2 is a cross-sectional view of a kotatsu for chairs. Figure 3 is a sectional view and a partial sectional view of the tower and the pedestal. Figure 4 is a combination diagram and partial sectional view of the existing tower kotatsu and pedestal. Figure 5 is a cross-sectional view of the Yagura Kotatsu and a diagram of its use. FIG. 6 is a cross-sectional view of the Horikotatsu and a diagram of its usage. ■...Top plate 2...Strut 3...Shielding heat insulator 4
...Futon 6...Heating element 7...Yagura 9...
- Frame.

Claims (1)

[Claims] 1. Four pillars (2
) (2) (2) (2) and place the outside of the chair (
5) Shielding insulation (3) up to near the height of the sitting surface (3)
(3) Enclosed with (3) and shielded from above with insulation (3) (
3) (3) A kotatsu for a chair that is covered with a futon (4) to a position lower than the upper end of (3) and has a heating element (6) placed inside it. 2. Attach the heating element (6) to the bottom of the top plate (1) and the support column (2)
) (2) (2) (2) shielding insulation (3) (3) (3)
(3) The tower (7) cut near the top, the pillars (8) (8) (8) (8) at the bottom of the cut surface, and the shielding insulation (3) (
3) Frame (9) and futon (4) made up of (3) and (3)
A kotatsu for a chair according to claim 1, comprising: 3. Attach the support (2) to the existing Yagura Kotatsu (10).
2) (2) (2) on the bottom of the pillar (8) (8) (8) (8
2. A kotatsu for a chair according to claim 1, which comprises a pedestal (9) whose top surfaces are aligned with each other.