JP2021090477A - Kotatsu quilt - Google Patents

Abstract

To provide a favorable use state by suppressing damage of heating wires for heating.SOLUTION: A Kotatsu quilt 11 including heating wires 14 laid at a part excluding a central top plate placement part 13 on which a top plate for the Kotatsu is installed, comprises a plurality of heating surface parts 16 in which the heating wires 14 are laid, formed into a planar shape. The plurality of heating surface parts 16 are connected with the heating wires 14, and connection parts 14a between the heating surface parts 16 in the heating wires 14 are located at outer edge portions of the top plate placement part 13.SELECTED DRAWING: Figure 1

Description

The present invention relates to a kotatsu futon having an electric heat generating function.

As such a kotatsu futon, there is one disclosed in Patent Document 1 below. This kotatsu futon is provided with one heating wire inside, except for the part corresponding to the top plate of the kotatsu turret. The heating wire is provided on the entire surface outside the portion corresponding to the top plate portion. The portion corresponding to the position where the human body enters is such that the heating wire is laid in a zigzag shape to form a surface having a predetermined shape and a predetermined size. Unlike the part corresponding to the position where the human body enters, the heating wire at the corner part corresponding to the leg of the kotatsu turret is not in a form that constitutes a surface, but is laid linearly on the outer peripheral edge of the kotatsu futon. ..

Both ends of the heating wire are connected by a connector part, and a power cord is connected to the connector part. The power cord has a controller and can perform operations such as turning the power on and off.

If such a kotatsu futon is used, the entire inside of the kotatsu turret can be effectively used as a heating space.

However, at the corners of the kotatsu futon, the fabrics tend to fold vertically and horizontally to form a lump, and they are easily stepped on, so the heating wire laid on the outer peripheral edge may be damaged.

Jikkai Sho 57-6193

Therefore, it is a main object of the present invention to suppress damage to the heating wire so that it can be used preferably.

The means for that is a kotatsu futon in which a heating wire is laid in a portion other than the central top plate mounting portion on which the top plate of the kotatsu is placed, and the heating surface portion in which the heating wire is laid to form a surface. Are formed, and these heating surface portions are connected by the heating wire, and the continuous portion between the heating surface portions in the heating wire is a kotatsu futon located at the outer edge portion of the top plate mounting portion. is there.

In this configuration, the outer edge portion of the top plate mounting portion, that is, the portion of the top plate mounting portion that is close to the boundary with the outer peripheral portion, or the outer peripheral portion that is close to the boundary with the top plate mounting portion. The part, the connection part of the electric wire located on the boundary between the top plate mounting part and the outer peripheral part, is not easily changed in shape during use.

According to the present invention, deformation that occurs in the continuous portion of the heating wire connecting the heating surface portions can be prevented as much as possible, so that damage can be avoided and a preferable usage state can be obtained.

Partially broken plan view of the kotatsu futon. A perspective view of the state of use of the kotatsu futon. Top view of the heating cloth. Sectional view of heating cloth. Another example Partial plan view of the kotatsu futon. Another example A plan view of a kotatsu futon. Another example A plan view of a kotatsu futon.

An embodiment for carrying out the present invention will be described below with reference to the drawings.

FIG. 1 shows a partially broken plan view of the kotatsu futon 11, and FIG. 2 shows a perspective view of the kotatsu futon 11 in a used state.

The kotatsu futon 11 has a heat generating function in which a heating wire 14 is laid at a portion other than the central top plate mounting portion 13 on which the kotatsu top plate 12 is placed. Specifically, the kotatsu futon 11 is a square in a plan view as a whole, and more specifically, a quadrangle with rounded corners. The top plate mounting portion 13 in the center of the kotatsu futon 11 is a plan view quadrangle substantially similar to the kotatsu futon 11, and the directions of the four sides forming the quadrangle of the top plate mounting portion 13 are the same as the sides of the kotatsu futon 11. Is.

The kotatsu futon 11 having such a shape is composed of a main body portion 15 made of an appropriate flexible cloth and a plurality of heating surface portions 16 provided in the main body portion 15. The heating surface portion 16 has a planar shape on which the heating wire 14 is laid.

As described above, the kotatsu futon 11 is a square in a plan view, and the top plate mounting portion 13 is smaller than that and is a square in a plan view in the same direction. Therefore, the heating surface portion 16 is centered on the top plate mounting portion 13. It is arranged in four places vertically and horizontally. These four places correspond to the positions where the human body enters when the kotatsu futon 11 is used by hanging it on a kotatsu turret (not shown) as shown in FIG.

The shape of the heating surface portion 16 is rectangular in a plan view, and a non-heating portion 17 without a heating wire 14 is provided between the heating surface portions 16, that is, at a corner portion corresponding to the leg of the kotatsu turret. Since the kotatsu futon 11 is a square in a plan view with rounded corners, the non-electric heating portion 17 has a fan shape in a plan view having a right-angled central angle.

The heating surface portion 16 is composed of a heating cloth 18 having a built-in heating wire 14, and these heating surface portions 16 are connected by a continuous portion 14a of the same heating wire 14 as the heating wire 14 constituting the heating surface portion 16. That is, the plurality of heating cloths 18 constituting the heating surface portion 16 are integrated by one heating wire 14.

Then, the continuous portion 14a between the heating surface portions 16 of the heating wire 14 is located at the outer edge portion of the top plate mounting portion 13 in the kotatsu futon 11 as shown in FIG.

FIG. 3 shows a plan view of four heating cloths 18 connected to one. As shown in this figure, the heating cloth 18 has a sheet shape in which the heating wire 14 is built, and the heating wire 14 is laid in a zigzag shape so as to form a rectangular surface in a plan view smaller than the heating cloth 18. ing. The direction of the zigzag folding is the direction in which the folded portion 14b is located on both sides of the heating cloth 18 in the longitudinal direction. That is, the heating wire 14 of the heating cloth 18 is laid so that the extending direction of the heating wire 14 is mainly horizontal for the human body to be used.

As described above, the heating wire 14 has a zigzag laying path, but the entrance and exit of the heating wire 14 to the heating cloth 18 corresponds to both ends on the inner peripheral side of the heating cloth 18, that is, the top plate mounting portion 13. A path adjusting portion 14c extending from the outer peripheral side to the inner peripheral side is provided on one side in the longitudinal direction of the heating cloth 18 so as to be located at both the left and right ends of the heating cloth 18.

A connector 19 is provided on one of the four heating cloths 18 (connecting side heating cloth 18a). The connector 19 is a member that connects both ends of the heating wire 14 and to which a controller (not shown) is connected. The connector 19 is provided at the outer peripheral end of the path adjusting portion 14c described above.

The heating cloth 18 has two sheet materials 18b that sandwich the heating wire 14, and a seam 18c that sews the sheet materials 18b to each other at a position that sandwiches the laying path of the heating wire 14.

That is, as shown by breaking a part in FIG. 3 and as shown in the cross section in FIG. 4, the heating wire 14 sandwiched between the two sheet materials 18b is prevented from moving unnecessarily by the seam 18c. The position is regulated.

As the sheet material 18b, an appropriate material can be used, but for example, using a non-woven fabric or felt is advantageous in terms of strength and prevention of displacement from the main body portion 15. Further, the position of the heating wire 14 may be regulated by using the seam 18c, by sewing, or by using an adhesive means such as hot melt.

The main body portion 15 that holds the heat-generating cloth 18 is configured such that the portion having the heating surface portion 16 and the fabrics constituting the other portions are different fabrics, and these are spliced together. In addition, the types or compositions of the doughs are different from each other.

The portion having the heating surface portion 16 is a portion provided with the heating cloth 18 at four vertical and horizontal positions, and this portion is composed of three pieces of cloth as shown in FIG. For the lining 21 constituting the back surface, a soft and warm fabric such as Meyer is used. The heating cloth 18 is held on the front surface of this lining. A heat-retaining material 22 made of cotton or the like having heat-retaining properties is provided on the heat-generating cloth 18, and a surface material 23 made of, for example, quilting or the like is provided on the surface of the heat-retaining material 22.

The parts other than the part having the heating wire 14 are the above-mentioned top plate mounting part 13 and the non-heating part 17. These are also made of different fabrics.

The top plate mounting portion 13 is composed of one appropriate central separate cloth 24 forming a square in a plan view. The central separate cloth 24 has a function of connecting the portion provided with the heating cloth 18 and the non-electric heating part 17 and regulating the positional relationship between them.

The non-electric heating portion 17 has a double structure of a lining 25 made of, for example, Meyer, and an outer material 26 which constitutes a surface and has appropriate functions such as decorativeness and antifouling property.

The fabric that constitutes the top plate mounting portion 13 (center separate cloth 24), the fabric that constitutes the portion that holds the heating cloth 18 (lining 21, heat insulating material 22, outer material 23), and the fabric that constitutes the non-electric heating portion 17. (Lining 25, outer material 26) are sewn together to form one square kotatsu futon 11.

At this time, the continuous portion 14a located between the heating cloths 18 in the heating wire 14 is located at the outer edge portion of the top plate mounting portion 13 as described above, so that the four corner portions of the top plate mounting portion 13 are located. It is passed through the vicinity of the main body portion 15 and fixed to the main body portion 15 by an appropriate means such as a seam or sewing.

Further, the continuous portion 14a located between the heating cloths 18 in the heating wire 14 is covered with the protective tube 31. The protective tube 31 has flexibility and reduces the load and load applied to the heating wire 14. It is composed of an appropriate material such as synthetic resin or paper. The protective tube 31 may be made of a tubular body or may have a slit or a spiral cut on the peripheral surface. In this case, it is easy to retrofit the continuous portion 14a.

The kotatsu futon 11 configured as described above is used by hanging it on a kotatsu turret as shown in FIG. 2 and placing the top plate 12 on the top plate mounting portion 13. When energized, the heating wire 14 of the heating surface portion 16 of the kotatsu futon 11 generates heat and heats the inside of the kotatsu.

Since the heating surface portion 16 is formed by the heating wire 14, the heating surface portion 16 has a certain degree of rigidity as a whole, but the non-heating portion 17 between the heating surface portions 16 has no heating wire 14 on the outer peripheral edge and is the same as the fabric as a whole. Has the flexibility of. Moreover, since the continuous portion 14a of the heating wire 14 extending between the heating surface portions 16 is located on the outer peripheral edge of the top plate mounting portion 13, the non-heating portion 17 becomes the heating wire 14 no matter how it is deformed. No load is applied and damage such as disconnection can be prevented.

Since the non-electric heating portion 17 is flexible and exists so as to sandwich the portion having the heating surface portion 16, it is possible to suppress the formation of a gap on the side portion of the seated human body, and there is no waste of heat.

Further, since the heating surface portion 16 is not simply formed by laying a heating wire but is formed of a heating cloth 18 having a built-in heating wire 14, the kotatsu futon 11 can be easily manufactured.

Further, since the heating cloth 18 has two sheet materials 18b sandwiching the heating wire 14 and a seam 18c for sewing the sheet materials 18b to each other at a position sandwiching the laying path of the heating wire 14, the sheet material 18b holds the heating wire 14. It holds and protects, and the seams 18c prevent misalignment. From this point as well, it is possible to prevent the heating wire 14 from being significantly deformed and damaged.

Further, since the portion of the main body portion 15 having the heating surface portion 16 and the fabrics constituting the other portions are different fabrics and are spliced together, the heating surface portion 16 is formed by the heating cloth 18. Coupled with the configuration, it is easy to manufacture. In addition, the required portion of the main body 15 can be provided with a fabric of the required type or structure, and can be made excellent in terms of functionality.

As described above, the continuous portion 14a of the heating wire 14 is provided at a position where it is not easily affected by deformation, but since it is covered with the protective tube 31, more sufficient protection can be obtained. Since the continuous portion 14a is located at the spliced portion, it can be fixed so as not to be misaligned when the fabrics are spliced.

Other examples will be described below. In this description, the same parts as those described above are designated by the same reference numerals, and detailed description thereof will be omitted.

FIG. 5 is a partial plan view of the kotatsu futon 11 according to another example. As shown in this figure, the non-electric heating portion 17 is configured to be larger than the plan view shape between the heating surface portions 16 and to have folds so that a large space can be provided when the non-electric heating portion 17 is used.

With the kotatsu futon 11 having such a configuration, it is possible to completely eliminate the gap on the side of the user.

FIG. 6 is a plan view of the kotatsu futon 11 according to another example, and FIG. 6A is a square view in a plan view and has a structure without a non-electric heating portion 17.

(B) of FIG. 6 has a non-electric heating portion 17 unlike the kotatsu futon 11 of (a), but the non-electric heating portion 17 having a fan shape in a plan view has a central angle smaller than 90 degrees.

FIG. 7 is a plan view of the kotatsu futon 11 according to another example, and is a kotatsu futon 11 having a circular shape in a plan view. The kotatsu futon 11 in FIG. 7A has a structure without the non-electric heating portion 17.

FIG. 7B has a structure having a non-electric heating portion 17 unlike the kotatsu futon 11 of FIG. 7A. At the time of use, the orientation is determined so that the inner corner of the non-electric heating portion 17 corresponds to the portion corresponding to the leg body of the kotatsu turret.

The above configuration is a configuration for carrying out the present invention, and the present invention is not limited to the above-mentioned configuration, and other configurations can be adopted.

For example, the plan-view shape of the kotatsu futon 11 may be an appropriate shape such as a rectangle or a polygon in addition to the above-mentioned shape, and may have a structure in which a plurality of kotatsu futons are stacked instead of one in the thickness direction.

11 ... Kotatsu futon 12 ... Kotatsu top plate 13 ... Top plate mounting part 14 ... Heating wire 14a ... Continuous part 16 ... Heating surface part 17 ... Non-electric heating part 18 ... Heating cloth 18b ... Sheet material 18c ... Seam 31 ... Protective tube

Claims (8)

It is a kotatsu futon with a heating wire laid in the part other than the central top plate mounting part where the kotatsu top plate is placed.
A plurality of surface-shaped heating surface portions are formed by laying the heating wire.
These heating surfaces are connected by the heating wire and are also connected.
A kotatsu futon in which a continuous portion between the heating surface portions of the heating wire is located at the outer edge portion of the top plate mounting portion. The kotatsu futon according to claim 1, wherein the heating surface portion is made of a heating cloth containing the heating wire. The heating cloth includes two sheet materials sandwiching the heating wire and
The kotatsu futon according to claim 2, further comprising a seam for sewing the sheet materials together at a position sandwiching the heating wire laying path. The kotatsu futon according to any one of claims 1 to 3, wherein a non-heating portion without a heating wire is provided between the heating surface portions. The kotatsu futon according to any one of claims 1 to 4, wherein the portion having the heating surface portion and the dough constituting the other portion are different doughs, and these are spliced together. .. The kotatsu futon according to claim 5, wherein the types or compositions of the plurality of fabrics are different from each other. The kotatsu futon according to any one of claims 1 to 6, wherein the continuous portion of the heating wire is covered with a protective tube. The top plate mounting portion is rectangular in a plan view, and
The kotatsu futon according to any one of claims 1 to 7, wherein the heating surface portions are arranged at four locations vertically and horizontally around the top plate mounting portion.

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