KR20200128905A - Heat matless for electric bed and manufacturing method therefor - Google Patents

Abstract

Disclosed are a heating mattress for an electric bed and a method of manufacturing same. The method of manufacturing a heating mattress for an electric bed of the present invention comprises the steps of: forming an upper cushioning material having an upper surface on which upper grooves are formed at regular intervals in the direction orthogonal to the longitudinal direction, and a lower cushioning material having an upper surface on which lower grooves are formed at regular intervals in the direction orthogonal to the longitudinal direction; arranging a heating sheet and an insulation sheet between the upper cushioning material and the lower cushioning material to be stacked on each other, and coupling the heating sheet and the insulation sheet to each other through high-frequency bonding; and forming a bottom plate by coupling PET sheets to the upper and lower surfaces of a plate material corresponding to the lower cushioning material, respectively, wherein the bottom plate is coupled to the lower surface of the lower cushioning material through high-frequency bonding after a first groove corresponding to the upper groove is formed in an upper surface area on one side with respect to the center of the length of the bottom plate, and a second groove corresponding to the lower groove is formed in a lower surface area on the other side. According to the present invention, through the structures of the upper and lower grooves formed on the upper and lower cushioning materials and the first and second grooves formed on the bottom plate, the heating mattress is deformed freely and easily even by a small power of a driving frame, thereby reducing an economic burden caused by maintenance of an electric bed. Moreover, due to the heating sheet coupled between the upper and lower cushioning materials, heat at a constant temperature can be provided to a user using the electric bed.

Description

Heating mattress for electric bed and its manufacturing method {HEAT MATLESS FOR ELECTRIC BED AND MANUFACTURING METHOD THEREFOR}

The present invention relates to a heating mattress for an electric bed and a method of manufacturing the same, and more particularly, a heating mattress for an electric bed that can be easily deformed by interlocking with the mechanical operation of the electric bed, and provides heat of a certain temperature to the user. And it relates to the manufacturing method.

In general, a bed is a kind of furniture for sleeping or resting, which does not require separate transportation and storage, but is provided in a fixed location such as a bedroom, and has a proper use relationship.

However, as society gradually becomes more complex and diversified, people are chased by busy daily life and work as much as the complex society. Therefore, sleeping and resting spaces are not limited to bedrooms in a fixed location, but rather spend a moment. Therefore, you need a simplified means of rest to recover your tired body and mind.

Meanwhile, a conventional bed is mainly used in a fixed type in which the shape and height are fixed.

However, even with such a fixed bed, a bed used in a hospital or the like is mainly used in consideration of the patient's condition, but it can be transformed into a shape in which a part of the body such as the head, leg frame, and waist is inclined vertically.

The fixed bed may give an angle of inclination to a part of the body, but there is a problem that the height of the bed is not entirely adjusted according to the height of the user or the user's convenience.

Recently, in order to compensate for the above problems, electric beds with adjustable height are on the market. In other words, the electric bed is a bed having effects such as blood circulation, induction of a sound sleep, prevention of snoring, etc. since a part of the bed frame is operated to adjust the angle of the bed.

Such an electric bed includes a driving frame operated by a driving means such as a piston or a motor to operate a part of the bed frame, and a mattress that is deformed to adjust the angle of the bed by the driving frame.

However, the mattress applied to the conventional electric bed is formed to a certain thickness to provide a cushioning force while supporting the user's weight, and thus there is a structural problem in that a large amount of power is required to operate the drive frame.

In other words, pistons and motors with high usable capacity are expensive, require a lot of power, and the cost to operate and maintain the pistons and motors is also high, so the operation of a mattress that requires a high usable capacity requires a lot of power. It is an economic burden to the user as it is needed and requires a lot of cost to maintain it.

KR Registered Patent Publication No. 10-1894152 (August 27, 2018) KR Patent Publication No. 10-2019-0002074 (January 08, 2019)

The technical problem of the present invention is to make it easy to deform the heating mattress with a small power of the driving frame installed in the electric bed, thereby reducing the economic burden of maintaining the electric bed, and a method for manufacturing the same. Is to provide.

In addition, another technical problem of the present invention is to provide a heating mattress for an electric bed capable of providing heat at a predetermined temperature to a user by embedding a heating element inside the mattress, and a manufacturing method thereof.

The technical problem to be achieved by the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned can be clearly understood by those of ordinary skill in the technical field to which the present invention belongs from the following description. There will be.

The above technical task is to form an upper cushioning material in which upper grooves are formed at regular intervals in a direction perpendicular to the longitudinal direction on the upper surface, and a lower cushioning material in which lower grooves are formed at regular intervals in a direction perpendicular to the longitudinal direction on the lower surface. step; Arranging a heating sheet and a heat insulating sheet to be laminated between the upper cushioning material and the lower cushioning material, and bonding them by high-frequency bonding; And a bottom plate formed by combining PET sheets on the upper and lower surfaces of the plate material corresponding to the lower cushioning material, wherein the bottom plate has a first recess corresponding to the upper groove in an upper surface area of one side thereof based on a center in a longitudinal direction. Forming a concave groove, forming a second concave groove corresponding to the lower concave groove in a lower surface area of the other side thereof, and then bonding the lower surface of the lower cushion material by high-frequency adhesion; and a heating mattress for an electric bed comprising: It is achieved by the method of manufacturing.

In the heating sheet, a strip-shaped positive electrode and a negative electrode are arranged in parallel on one side of a sheet portion woven with non-conductive fibers while maintaining a predetermined distance, and a single row of conductive heating fibers is orthogonal between the positive electrode and the negative electrode. It is characterized in that it is disposed at regular intervals apart from each other in a direction that is formed integrally with the sheet portion so that both ends thereof are electrically connected to the positive electrode and the negative electrode, and then coated with polyurethane on the surface of the sheet portion.

The conductive heating fiber is formed by coating one or two mixtures selected from carbon and graphene on nylon, or coated on cotton yarn (cotton), or coated on glass fiber, or coated on nichrome wire It is characterized in that it is formed.

The heat insulating sheet is disposed under the heating sheet, and is coated with a heat shielding material so as to block the heat radiated from the heating sheet from moving toward the lower cushion member.

The heat shielding material is made of a mixture of nanometer-sized inorganic materials and rare earths, and is bonded to the lower surface of the insulating sheet by polyurethane coating.

The rare earth is characterized in that it is one or a mixture of two or more selected from lanthanum (La), lutetium (Lu), cerium (Ce), gadolibium (Gd), and praseodylium (Pr).

The upper cushioning material and the lower cushioning material are formed of polyurethane foam or latex foam.

In addition, the technical problem of the present invention is achieved by a heating mattress for an electric bed manufactured by the above-described manufacturing method.

According to the present invention, by the structure of the upper and lower grooves formed in the upper and lower cushioning members, and the first and second grooves formed in the bottom plate, it is easily deformed freely with small power of the driving frame, It has a useful effect that can reduce the economical burden of maintaining the bed.

In addition, since the heating sheet is coupled between the upper and lower cushioning materials, it has a useful effect of providing heat at a certain temperature to the user when using the electric bed.

1 is a flowchart illustrating a manufacturing process of a heating mattress for an electric bed according to the present invention.
Figure 2 is a view for explaining in detail the manufacturing process of the heating mattress for an electric bed according to the present invention, Figure 2a is a view showing the molding state of the upper and lower cushioning material applied to the heating mattress, Figure 2b is a heating mattress It is a view showing a heating sheet applied, Figure 2c is a view showing a combined state of the heating sheet and the heat insulating sheet applied to the heating mattress, Figure 2d is a view showing the molding state of the bottom plate applied to the heating mattress.
3 is a view showing a combined state of the heating mattress for an electric bed according to the present invention.
4 and 5 are photographs comparing an infrared transmission test of an insulating sheet applied to a heating mattress for an electric bed according to the present invention.
6 is a view for explaining a deformation state of the heating mattress for an electric bed according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, descriptions of functions or configurations already known will be omitted in order to clarify the gist of the present invention.

In the method of manufacturing a heating mattress for an electric bed according to the present invention, as shown in FIG. 1, between the upper and lower cushion members 20 and the step of forming the upper and lower cushion members 10 and 20 (S10). The step of combining the heating sheet 30 and the heat insulating sheet 40 (S20), the step of forming the bottom plate 50 (S30), and the bottom plate 50 on the lower surface of the lower cushioning material 20 It includes the step of combining (S40).

The method of manufacturing a heating mattress for an electric bed according to the present invention will be described in more detail with reference to FIGS. 2A to 2D.

As shown in FIG. 2A, first, the upper cushioning material 10 in which the upper groove 12 is formed at regular intervals in a direction perpendicular to the longitudinal direction on the upper surface, and the lower groove 22 in a direction orthogonal to the longitudinal direction on the lower surface. ) Each of the lower cushion members 20 formed at regular intervals are molded.

The upper cushioning member 10 has a structure in which upper grooves 12 are formed at regular intervals in a direction orthogonal to the longitudinal direction on the upper surface. This upper cushioning material 10 is interlocked with the mechanical motion of the driving frame (not shown in the figure) installed in the electric bed (not shown in the figure) by the structure of the upper groove 12 so that it can be easily deformed freely. do.

The lower cushioning member 20 has a structure in which the lower grooves 22 are formed to be elongated at predetermined intervals in a direction perpendicular to the longitudinal direction on the lower surface thereof. The lower cushion member 20 can be easily deformed freely by interlocking with the mechanical motion of the driving frame installed in the electric bed, similar to the upper cushion member 10 due to the structure of the lower groove 22.

The upper cushioning member 10 and the lower cushioning member 20 may be formed of polyurethane foam or latex foam to provide a certain cushioning force while sufficiently supporting the user's weight.

As shown in FIG. 2B, the heating sheet 30 includes a seat portion 32 forming a main frame, a plus electrode 34 disposed in parallel at a predetermined distance on one side of the seat portion 32, and Conductive heating of a single row disposed between the negative electrode 36 and the positive electrode 34 and the negative electrode 36 at a certain distance from each other and electrically connected to both ends of the positive electrode 34 and the negative electrode 36 And fibers 38.

The sheet portion 32 is formed by weaving a non-conductive fiber having a certain area. That is, the sheet portion 32 is formed to provide a certain area so that a plurality of the positive electrode 34 and the negative electrode 36 and a single row of conductive heating fibers 38 can be disposed on one side. At this time, the sheet portion 32 may be formed of synthetic fibers or natural fibers.

The positive electrode 34 and the negative electrode 36 are combined to be integrated on one side of the sheet portion 32. That is, the plus electrode 34 and the minus electrode 36 are formed in a strip shape, are arranged in parallel on one side of the sheet portion 32 to maintain a predetermined distance, and are then combined to be integrated. The positive electrode 34 and the negative electrode 36 serve to supply power to a single row of conductive heating fibers 38 to be described later.

The conductive heating fiber 38 is coupled to one side of the sheet portion 32 so as to be disposed between the positive electrode 34 and the negative electrode 36. That is, the conductive heating fiber 38 is disposed at a predetermined distance apart from each other in a direction orthogonal to the positive electrode 34 and the negative electrode 36, but both ends thereof are electrically connected to the positive electrode 34 and the negative electrode 36 It is woven on one side of the sheet part 32 so as to be possible. In this case, the conductive heating fiber 38 has a structure that emits far-infrared radiation heat by power supplied through the positive electrode 34 and the negative electrode 36.

Here, the conductive heating fiber is formed by coating one or two mixtures selected from carbon and graphene on nylon, or coated on cotton yarn (cotton), or formed by coating on glass fiber, or coated on nichrome wire. Can be formed.

In such a heating sheet 30, the conductive heating fiber 38 is heated by power supplied through the positive electrode 34 and the negative electrode 36 to provide heat of a predetermined temperature toward the upper cushioning member 10. It has a structure.

In addition, the heating sheet 30 is coated with polyurethane (PU) on its surface, so that it can be safely protected from moisture.

Reference numeral '30A', which is not described in the heating sheet 30, denotes a connection terminal connected to the positive electrode 34 and the negative electrode 36, and the reference numeral '30B' is connected to the connection terminal 30A. The reference numeral '30C' denotes a temperature controller installed in the power cable 30B, and the reference numeral '30D' denotes a power terminal. In this case, the power terminal 30D may be formed as a USB terminal or a plug.

The heating sheet 30 may be configured to generate heat by being electrically connected to an external power source or to generate heat by power supplied from a battery.

In addition, the heating sheet 30 simultaneously provides heat to the user's chest, waist and legs under the control of the temperature controller (30C), or selectively provides heat to the user's chest, waist and legs. It may be configured to do.

As shown in Figure 2c, the heat insulating sheet 40 is integrally coupled to the lower portion of the heating sheet 30 is formed to block the movement of heat. This insulating sheet 40 is woven with synthetic fibers or natural fibers, and a heat-insulating material 32 is coated on one side thereof.

The heat insulating material 32 is coated on one side of the heat insulating sheet 40, and is made of a mixture of nanometer-sized inorganic materials (ceramics) and rare earths to block the movement of heat, and is made of a polyurethane (polyurethane) on one side of the heat insulating sheet. , PU) is integrated by coating.

And the heat shielding material 32 is 40-50% inorganic in the polyurethane resin so that the heat radiated from the conductive heating fiber 38 provided in the sheet part 32 can be radiated only in a predetermined direction of the sheet part 32, It is formed by mixing in a ratio of 50-60% of rare earths. In this case, the rare earth may be formed of one or a mixture of two or more selected from lanthanum (La), lutetium (Lu), cerium (Ce), gadolibium (Gd), and praseodylium (Pr).

Here, the mixing ratio of the inorganic material and the rare earth of the heat shielding material 32 may vary according to need, and the mixture of the inorganic material and the rare earth has a property of absorbing and reflecting heat emitted from the conductive heating fiber 38.

The heat insulating sheet 40 has a structure in which heat radiated from the conductive heating fiber 38 by the heat insulating material 32 is radiated only in a predetermined direction of the heating sheet 30.

That is, the heat generated from the conductive heating fiber 38 of the heating sheet 30 is radiated only in the direction of the upper cushioning material 10 by the heat shielding material 32 coated on one side of the heat insulating sheet 40, and accordingly It is possible to increase thermal efficiency by preventing heat loss due to heat movement in the direction of the cushioning material 20.

As shown in Figure 2d, the bottom plate 50 is formed by combining the PET sheets 54 on the top and bottom of the plate 52 formed of plywood or medium-density fiberboard, respectively, but the bottom plate 50 has a length A first groove (56) corresponding to the upper groove (12) is formed in the upper surface area of one side of the center of the direction, and the second groove (58) corresponding to the lower groove (22) is formed in the lower surface area of the other side. After forming, it is integrally coupled to the lower surface of the lower cushioning material 20 by high-frequency adhesion.

Here, the first groove 56 and the second groove 58 are similar to the upper groove 12 and the lower groove 22 formed in the upper and lower cushion members 20, and the mechanical operation of the drive frame installed on the electric bed. It is interlocked so that the bottom plate 50 can be easily transformed freely. That is, the bottom plate 50 securely supports the upper and lower cushioning members 20, while securing the flexibility corresponding to the deformation of the upper and lower cushioning members 20 by the first and second grooves 56 and 58. You can do it.

In addition, the PET sheet 54 is formed of a PET material to have coelasticity, and accordingly, the resilience of the bottom plate 50 can be improved when the driving frame is not operated.

Such a floor plate 50 securely supports the upper and lower cushioning members 20, while securing a certain flexibility by the first and second grooves 56 and 58, and is freely linked to the operation of the drive frame. It can be easily transformed.

As shown in FIG. 3, a heating sheet 30 and a heat insulating sheet 40 are stacked between the upper cushioning material 10 in which the upper concave groove 12 is formed and the lower cushioning material 20 in which the lower concave groove 22 is formed. The upper cushioning material 10 and the lower cushioning material 20 are integrally bonded to each other by high-frequency bonding, and the bottom plate 50 is bonded by high-frequency bonding to the lower surface of the lower cushioning material 20. It is possible to complete the heating mattress (1) for the electric bed.

The heating mattress 1 as described above is mounted on the driving frame installed on the electric bed while completely enclosed by the finishing sheet 60.

On the other hand, as shown in Figures 4 and 5, an infrared transmission test was performed on the heat insulating sheet 40 applied to the heating mattress 1 for an electric bed according to the present invention.

Here, polyester fiber and nylon fiber were used as the material of the heat insulating sheet 40 to be tested here, and one side of the polyester fiber and nylon fiber of Sample 1 was made of general polyurethane (Polyurethane, PU) Corning was performed, and a heat-shielding material was made of polyurethane (Polyurethane, PU) on one side of the polyester fiber and nylon fiber of Sample 2.

In the state as described above, the temperature of the heating sheet 30 was set to 37 degrees, and the infrared transmittance of the heat insulating sheet 40 was measured for 30 minutes using a far-infrared detector, and the results are shown in Table 1 below.

division Infrared (IR) transmittance (%) Block rate (%) Sample 1-General PU coating (polyester fiber) 47% 53% Sample 2-Heat-blocking PU coating (polyester fiber) 8% 92% Sample 1- General PU coating (nylon fiber) 42% 58% Sample 2-Heat-blocking PU coating (nylon fiber) 10% 90%

As shown in Table 1, the infrared transmittance of the insulating sheet 40 of Sample 1 was measured to be 47% and 42%, respectively, and the heat shielding rate was measured to be 53% and 58%, respectively. In contrast, the infrared transmittance of the heat insulating sheet 40 of Sample 2 was measured as 8% and 10%, respectively, and the heat shielding rate was measured as 92% and 90%, respectively.

Therefore, when the heat insulating sheet 40 is coupled to the heating sheet 30, it is possible to secure a higher heat shielding rate than the heat insulating sheet applied to the existing heat generating sheet, thereby preventing heat loss during heat generation of the heating sheet 30 Of course, it was confirmed that the thermal efficiency can be remarkably increased.

As shown in Fig. 6, the heating mattress 1 for an electric bed according to the present invention is mounted on the driving frame, and is in a streamlined manner to stably support the user's chest, waist and legs by interlocking with the operation of the driving frame. It will be transformed.

That is, the heating mattress 1 has an upper groove 12 and a lower groove 22 formed in the upper and lower cushioning materials 20, and a first groove 54 and a second groove formed in the bottom plate 50 ( 56), even with a small power of the drive frame, it can be easily transformed freely.

As described above, the heating mattress for an electric bed according to the present invention and a method of manufacturing the same include the upper and lower grooves 12 and 22 formed in the upper and lower cushioning members 20, and the first formed in the bottom plate 50. The structure of the 1 concave groove 54 and the second concave groove 56 makes it easy to freely deform even with a small power of the driving frame, thereby reducing the economic burden caused by the maintenance of the electric bed.

In addition, the heating mattress for an electric bed of the present invention is coupled to the heating sheet 30 between the upper and lower cushion members 20, so that heat of a certain temperature can be provided to the user when the electric bed is used.

In the above, although specific embodiments of the present invention have been described and illustrated, the present invention is not limited to the described embodiments, and various modifications and variations can be made without departing from the spirit and scope of the present invention. It is self-evident to those who have. Therefore, such modifications or variations should not be individually understood from the technical spirit or viewpoint of the present invention, and the modified embodiments should be said to belong to the claims of the present invention.

10: upper cushioning material
12: upper groove
20: lower cushion material
22: lower groove
30: heating sheet
32: seat portion
34: positive electrode
36: negative electrode
38: electric heating fiber
40: insulation sheet
42: heat shielding material
50: base plate
52: plate
54: PET sheet
56: first groove
58: second groove
50: finishing sheet

Claims (8)

Forming an upper cushioning material in which upper grooves are formed at regular intervals in a direction perpendicular to the longitudinal direction on the upper surface, and a lower cushioning material in which lower grooves are formed at regular intervals in a direction orthogonal to the longitudinal direction on the lower surface;
Arranging a heating sheet and a heat insulating sheet to be laminated between the upper cushioning material and the lower cushioning material, and bonding them by high frequency bonding; And
A bottom plate is formed by combining PET sheets on the upper and lower surfaces of the plate material corresponding to the lower cushioning material, and the bottom plate is a first groove corresponding to the upper groove in the upper surface area of the one side with respect to the center in the longitudinal direction And forming a second groove corresponding to the lower groove in a lower surface area of the other side thereof, and then bonding the lower surface of the lower cushion member by high-frequency adhesion; and a heating mattress for an electric bed comprising: Manufacturing method. The method of claim 1,
The heating sheet,
On one side of the sheet part woven with non-conductive fibers, a strip-shaped positive electrode and a negative electrode are arranged in parallel by maintaining a certain distance, and a single row of conductive heating fibers is mutually constant in a direction orthogonal to the positive electrode and the negative electrode. A method of manufacturing a heating mattress for an electric bed, characterized in that after being disposed at intervals and being integrally woven into the sheet part so that both ends thereof are electrically connected to the positive electrode and the negative electrode, the surface of the sheet part is coated with polyurethane. The method of claim 3,
The conductive heating fiber,
It is characterized in that one or two mixtures selected from carbon and graphene are formed by coating on nylon, or by coating on cotton yarn (cotton), or by coating on glass fiber, or by coating on nichrome wire. Method of manufacturing a heating mattress for an electric bed. The method of claim 1,
The insulation sheet,
A method of manufacturing a heating mattress for an electric bed, characterized in that it is disposed under the heating sheet and coated with a thermal barrier material to block heat radiated from the heating sheet from being moved toward the lower cushion member. The method of claim 4,
The heat shielding material,
A method of manufacturing a heating mattress for an electric bed, characterized in that it is made of a mixture of nanometer-sized inorganic and rare earth, and is bonded to the lower surface of the insulating sheet by a polyurethane coating. The method of claim 5,
The rare earth,
Manufacturing of a heating mattress for an electric bed, characterized in that it is one or a mixture of two or more selected from lanthanum (La), lutetium (Lu), cerium (Ce), gadolibium (Gd), and praseodylium (Pr) Way. The method of claim 1,
The upper and lower cushioning material is a method of manufacturing a heating mattress for an electric bed, characterized in that formed of polyurethane foam or latex foam. A heating mattress for an electric bed manufactured by the manufacturing method of any one of claims 1 to 7.

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