JPS599812B2 - Western-style kotatsu - Google Patents

Description

[Detailed description of the invention] E. The invention relates to a Western-style kotatsu that made it possible to warm up while sitting on a chair.

A typical example of this can be seen in the increased use of chairs and tables in the standardization of family life.

When using such chairs and tables, the most popular heating method has been to use a floor-standing stove that uses electricity, oil, or gas as a heat source, but when these methods are used, the warm air is As the cold air rises upward and the cold air stagnates in the lower part of the room, those who use chairs and tables are unable to escape the constant feeling of cold air from their feet to their waists. In rooms where food is not heated, the temperature inside the room does not rise sufficiently in a short period of time, making it difficult to enjoy a comfortable diet.

On the other hand, the traditional Japanese electric kotatsu has a heater installed inside a tower that is shielded by a kotatsu futon, so if you insert your lower limbs into the heater, the temperature inside the kotatsu will rise even in a shorter time than when the power is turned on. Therefore, it has the advantage of warming the body well.

However, conventional electric kotatsu were not suitable for use by people living on chairs.

Therefore, the object of this invention is to provide a Western-style kotatsu that is suitable for use with a chair, allows comfortable heating from the feet to the waist, and can be used as an ordinary table except in winter.

Next, embodiments of the present invention will be described based on the drawings.

Reference numeral 1 denotes a tower, and a top plate 3 is connected to the upper ends of multiple legs 2a to 2d.This tower has a height that allows it to be used as a table while sitting on an ordinary chair (not shown). have.

The top plate 3 has a substantially rectangular shape in plan, and has horizontal frames 4a to 4d arranged on its four sides connected by a grid 4e that intersects vertically and horizontally, and only one corner is shown in FIG.
A space 5 is formed between the distal ends of adjacent lateral legs to fit and connect the legs, which will be described later.

Further, a substantially trapezoidal connecting fitting 6 is provided inside the tip of each adjacent horizontal piece, and the connecting fitting is fixed to the adjacent horizontal piece with screws 7 at both ends, and the central part faces the space 5. I'm here.

Furthermore, grooves 8 are provided at both ends in the longitudinal direction of each horizontal strip.

Each of the legs 2a to 2d has protrusions 9 corresponding to the horizontal grooves on side surfaces f1 and f2 facing perpendicularly to each other.
a, 10a are provided, and between their side faces f1, f2, they have a corner face f3 facing in a direction of 45° to each side face.

In this way, when assembling the tower 1, the upper ends of the legs 2a to 2d are fitted into the spaces 5 located at the four corners of the top plate 3, and the protrusions 9a and 10a of each leg are fitted.
are fitted into the grooves 8, 8 of the adjacent horizontal frames 4a, 4d, and then the butterfly bolt 11 is passed through the hole previously provided in the connection fitting 6, and then the screw bolt 11 is inserted in advance into the hole provided in the corner cut surface f3. Each leg 2a to 2d is fixed to the top plate 3 by screwing into the hole.

The fitting between the grooves 8, 8 and the protrusions 9a, 10a provides a guiding action when the butterfly bolt 11 is fastened, and an action to prevent the legs from wobbling after fastening.

The above is merely an example of the structure of the tower and the connection structure between the top plate and the legs, and any other arbitrary structure may be used.

In the case of the configuration shown, bolt 11 is used when the tower is not used.
By removing the yagura, the tower can be disassembled and stored in a smaller volume.

However, the present invention is not limited to towers that can be disassembled and reassembled, and the top plate may be composed of a plate instead of a lattice.

12 is a table top, and when the kotatsu according to the present invention is used as a table, this table top 12 is placed on the top plate 3 of the tower 1.

In seasons other than winter, by placing the table top 12 on the tower 1 and arranging chairs around it, it can be used as a normal table.

At least a plurality of shielding plates 13A can be attached to or removed from the tower 1 between adjacent legs.

This shielding plate is attached when the kotatsu according to the present invention is used as a kotatsu in winter, and all or part of the shielding plate is opened between the legs of the person sitting on the chair on the side where the lower legs are inserted. The lower limbs can be inserted into the kotatsu, and the space between the legs on the side where the rudder is not inserted can be closed completely or to a required height with a shielding plate.

In the unprocessed state, each of the legs 2a to 2d has a pair of parallel protrusions 9a, 9b, 10a, 10b over the entire length on the side surfaces perpendicular to each other, as shown in FIG. At this point, as shown by the solid line in the same figure, the upper end of the leg is removed by leaving only the length necessary for fitting only the outer protrusions 9a and 10a into the horizontal groove at the upper end of the leg. ridges 9a, 9b, 10a to an appropriate height.
, 10b by cutting out the portion indicated by the imaginary line, the lower protrusions 9a, 9b, 10a,
10b forms a groove 14 between which the one end of the shielding plate 13A can be slid up and down.

In this way, a plurality of shielding plates 1'3A are inserted into the grooves 14 provided on the opposing surfaces of each leg.
It can be guided and held by b.

The height of the shielding plate installed between the legs is slightly higher than the lower end of the hanging cloth 15 covering the tower 1 when it is hanging down, and the height is between the shielding plate and the tower top board. It is preferable to set it lower than the knee height of the person inserted into the karayagura.

On the side where a person does not insert their legs, it is preferable to install the shielding plate as high as possible to close the space between the legs.

In addition, when stacking multiple shielding plates between the legs, in order to prevent noise generation due to mutual vibration of each shielding plate, pinching of clothes, etc., and the intrusion of drafts, As illustrated in FIG. 5, it is preferable that the contact portion of the shielding plate has a concave-convex fitting structure.

FIGS. 3 and 4 show protrusions 9 a t 9 b t 10 a on the legs 2 as means for holding the shielding plate 13A between the legs.
10b is shown, but as shown in FIG. 6, holding fittings 9 and 10 having grooves may be fixed to the leg 2 as separate members by screwing or the like.

Further, it is desirable to attach a heat insulating material 16 made of a material with a small thermal conductivity such as cloth so that when a person's feet touch the inner surface of the shielding plate, a person does not feel a cooling sensation.

The material of the tower 1 can be wood, hard synthetic resin, metal, etc. The former two have the advantage of high heat retention performance, but are accompanied by difficulties in connecting the legs and the top plate.

However, if it is made of synthetic resin, it has the advantage of being suitable for mass production by integral molding.

In addition, especially when building a tower using aluminum shapes,
It has high dimensional accuracy, is suitable for mass production, has sufficient strength, does not cause deformation or discoloration due to heat even after repeated use as a kotatsu or table, and is excellent in maintaining its beautiful appearance when used outside of winter. There is.

A bottom plate 17 has a heater 18 attached to its upper surface, and is removably fitted between the legs below the tower 1, and is left stationary on the floor in the fitted state.

In this state, the bottom plate 17 is fixed at its four corners by the legs.

In addition, if the shielding plate is attached all around the circumference, each side of the bottom plate is fixed by the plate, so even if force is applied from the foot placed on the bottom plate 17, the bottom plate will not move along the floor surface. There is no.

Since the feet of the person taking warmth are placed on the bottom plate 17, it is preferable to support the bottom plate on the floor surface, but it is also possible to support it on the legs at the four corners or on the legs and the blocking plate instead of supporting it on the splash surface. good.

It is also a good idea to cover the upper surface of the sole plate with cloth or the like made of a material with a low thermal conductivity so that your feet do not get cold.

If the heater 18 is a hot air heater that discharges hot air radially, it is possible to close off the area around the tower with only a shielding plate and warm the lower limbs without using the blanket 15. By using the hanging cloth 15, the rising warm air can be retained within the tower, making the inside of the kotatsu even warmer.

When the heater is of a type that does not discharge hot air, it is preferable to use a blanket.

In any case, the shielding plates are removable between each leg, so depending on the number of family members or the installation location, there may be more shielding plates on the side of the kotatsu that is not used at all or on the side that is rarely used than on the side that is used. By closing off the side to prevent heat radiation and loss, and by closing off only the amount necessary for the feet to go in and out, the user can easily put their feet in and out to get warm, minimizing heat loss. can be limited.

In addition, outside the winter season, the shielding plate and bottom plate can be removed and the tower and table top 12A can be used as a normal table, and the chairs used for the kotatsu can also be used together with this table.

In the illustrated embodiment, a heater 18 is attached to a bottom plate 17, and this bottom plate is placed under a tower to be used as a kotatsu, and the bottom plate is removed when used as an ordinary table. However, according to the principle idea of this invention, the heater is installed inside the top plate of the tower, or on the underside of the top plate, with as little protrusion as possible so that the heater will not be hit by a chair when the chair is stored. Alternatively, the heater may be attached to the legs, in which case the bottom plate 17 is not required.

The heating effect inside the kotatsu can be improved by installing a heater inside the top plate or legs and discharging warm air from the top plate, the bottom surface, or from the lower side of the legs toward the inside of the kotatsu.

When the horizontal frame and legs are made of aluminum hollow shapes, the heater can be easily installed inside the horizontal frame or the legs, and the horizontal frame and legs can be used as hot air blowing pipes.
It's advantageous.

Furthermore, since the horizontal frame and legs have a large coefficient of thermal conductivity, they will not be partially overheated by the heater, so even if your hands and feet touch them, you will not get burned.

As described above, according to the present invention, grooves cut out at the upper part are provided on the opposing surfaces of the legs adjacent to each other of the tower having a height that allows the use of chairs, and the grooves opposite to each other on the adjacent legs are provided. Since a plurality of shielding plates can be removably inserted into the above-mentioned cut arrow part, in the winter, the shielding plates are installed between each leg of the tower, preferably covered with cloth, and the inside of the tower is closed. If you dissipate heat with a heater, you can use it as a kotatsu to warm yourself while sitting on a chair.
A shield plate can be installed as high as possible between the legs on the side where a person does not insert their feet to prevent heat dissipation and loss, and the side where a person inserts their feet is the part necessary for the foot to enter and exit. By opening the kotatsu and closing it with a shielding board to the bottom, it is possible to easily put your feet in and out, and at the same time, it is possible to minimize the loss of heat, and it has high heat retention even as a seat-type kotatsu on a chair. is obtained.

And since it can be attached and detached between either leg,
The kotatsu is easy to use.

Furthermore, when the kotatsu is not in use, by removing at least the shielding plate, it becomes a normal table and can be used together with the chairs.

Therefore, you don't have to worry about where to store the tower, and it can be used effectively throughout the year.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is an enlarged plan view of the circle part in Fig. 1, Fig. 3 is a perspective view of the legs, and Fig. 4 is a view of the holding structure of the shielding plate. FIG. 5 is a cross-sectional view showing one example, FIG. 5 is a cross-sectional view corresponding to the line -v in FIG. 4, and FIG. 6 is a cross-sectional view showing another example of the shielding plate holding structure. 1... Tower, 2, 2a-2d... Legs, 3... Top plate, 4a-4d... Horizontal frame,
13A... Shielding plate, 15... Hanging cloth, 1
7... Bottom plate, 18... Heater.

Claims (1)

[Scope of Claims] 1. On opposing surfaces of mutually adjacent legs of a tower having a height that allows the use of chairs, extending over the entire length of the legs, and
A Western-style kotatsu, characterized in that grooves are formed to face each other and openings are formed, and cutouts are provided in the upper part of the grooves into which a plurality of shielding plates can be removably inserted. 2. The Western-style kotatsu according to claim 1, wherein the legs are made of aluminum profiles, and the protrusions are integrally formed with the legs. 3. The device according to claim 1 or 2, characterized in that the leg is made of a hollow aluminum profile, a heater is provided in the leg, and the leg is used as a hot air blowing pipe. Western-style kotatsu.